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If you’re looking for a dinner that feels both cozy and special, full of vibrant colors, warming flavors, and hearty satisfaction, then you’re going to love this Roasted Butternut Squash, Brussels Sprouts, and Flank Steak Dinner Recipe. It combines the natural sweetness of tender butternut squash cubes with the slightly crispy, caramelized Brussels sprouts and perfectly seared flank steak infused with aromatic garlic butter and fresh thyme. This meal delivers a balanced medley of flavors and textures that come together effortlessly to impress any family member or guest at your table.

Ingredients You’ll Need

The image shows a black cast iron pan filled with many slices of cooked beef strips, browned and slightly textured, laid out flat and overlapping each other. Small green herb leaves are scattered on top of the beef, adding a fresh pop of color. The pan is set on a white marbled surface that contrasts with the dark pan and meat. Photo taken with an iphone --ar 4:5 --v 7

The beauty of this Roasted Butternut Squash, Brussels Sprouts, and Flank Steak Dinner Recipe lies in its simplicity, with each ingredient playing a crucial role to bring out true flavor and texture. From earthy squash and Brussels sprouts to a perfectly seasoned steak, every component is essential in creating this harmonious dish.

  • Butternut squash (3 cups, peeled, seeded, cubed): Provides a sweet, creamy base that roasts to tender perfection.
  • Olive oil (4 tablespoons total): Essential for roasting vegetables and searing steak to develop rich flavors and crispy edges.
  • Salt and pepper: Simple but vital to bring out the natural flavors of all ingredients.
  • Brussels sprouts (12 oz, trimmed and halved): Adds a crisp texture and slightly nutty flavor when roasted.
  • Flank steak (1 lb): A lean cut that cooks quickly and pairs beautifully with the roasted veggies.
  • Smoked paprika (1/4 teaspoon): Lends a subtle smoky warmth to the steak seasoning.
  • Chili powder (1/4 teaspoon): Adds a touch of complexity and mild heat to the steak.
  • Freshly ground black pepper: Enhances the steak’s natural savoriness with a gentle bite.
  • Butter (3 tablespoons): Creates the luscious garlic butter sauce that finishes the steak.
  • Garlic (5 cloves, minced): Infuses the butter with aromatic depth and richness.
  • Fresh thyme (about 1/4 ounce): A fragrant herb that brightens the garlic butter and ties the whole dish together.

How to Make Roasted Butternut Squash, Brussels Sprouts, and Flank Steak Dinner Recipe

Step 1: Roast the Butternut Squash

Start by preheating your oven to 400 degrees Fahrenheit. It’s important to have your butternut squash peeled, seeded, and cut into roughly even cubes for even roasting. Toss these cubes with olive oil, salt, and pepper to ensure each piece gets a nice seasoning coat. Spread them out on a parchment-lined baking sheet, making sure they have room to roast rather than steam, then slide them into the oven for about 30 minutes. The result will be soft, caramelized edges and a silky interior that’s simply irresistible.

Step 2: Roast the Brussels Sprouts

While your squash roasts, prep the Brussels sprouts by trimming the ends and peeling off any yellow leaves. Slice each sprout in half to maximize browning. Follow the same process: toss with olive oil, salt, and pepper, spread on a lined baking sheet without crowding, and place in the oven at 400 degrees Fahrenheit as well. They generally take 20 to 30 minutes but watch closely to reach your desired crispy finish. Roasting both vegetables simultaneously saves time and fills your kitchen with a delightful aroma.

Step 3: Prepare and Cook the Flank Steak

Pat the flank steak dry, then rub both sides with smoked paprika, chili powder, salt, and freshly ground pepper. A hot cast-iron skillet is your best friend here; heat it empty for a couple of minutes before adding olive oil. Lay the steak down without moving it to develop a gorgeous sear, cooking for 5 minutes per side on medium to medium-low heat depending on preferred doneness. Use a meat thermometer if you want precise results: 130°F for medium-rare or 145°F for medium. Once cooked, transfer the steak to a plate and slice against the grain into those enticing 1-inch strips.

Step 4: Make the Garlic Butter Sauce and Combine

In the same skillet, melt butter and add minced garlic, gently cooking until the garlic softens and becomes fragrant without browning. Toss in the sliced steak and fresh thyme, coating the meat with the fragrant garlic butter sauce. Finally, add back the roasted butternut squash and Brussels sprouts to the skillet, warming everything over low heat just until everything melds together beautifully. This last step ensures each bite is bursting with flavor.

How to Serve Roasted Butternut Squash, Brussels Sprouts, and Flank Steak Dinner Recipe

A black cast iron pan contains three sections of food arranged in rows: the top right has medium brown cooked beef strips with a glossy texture, sprinkled with small green herb leaves. The bottom right holds shiny, roasted Brussels sprouts with a mix of dark green and light green colors, some showing slight browning spots. The left side features small orange cubes of roasted butternut squash with a slightly crisp look, also topped with green herb leaves. The pan is set on a dark wooden surface with some fresh herb sprigs around it. photo taken with an iphone --ar 4:5 --v 7

Garnishes

Fresh thyme sprigs work wonderfully as a garnish, adding a pop of green and a hint of herbal aroma. For an extra touch of brightness, a sprinkle of finely chopped parsley or a light drizzle of balsamic glaze can elevate the flavors and give the dish a refined finish.

Side Dishes

This dinner shines on its own, but if you want to supplement, consider serving it alongside a simple mixed green salad tossed with a lemon vinaigrette or some creamy mashed potatoes. A crusty bread or garlic knots also make lovely companions that can soak up any remaining garlic butter sauce.

Creative Ways to Present

For a festive twist, serve the steak slices atop the piles of roasted vegetables on warm plates to create a structured, restaurant-style presentation. Alternatively, layer the components in a rustic wooden bowl for a cozy family-style feel. Adding pomegranate seeds or toasted pecans over the plate can also add an unexpected burst of color and texture.

Make Ahead and Storage

Storing Leftovers

If you find yourself with leftovers, store the roasted vegetables and sliced steak in airtight containers and keep them refrigerated for up to 3 days. Keeping components separate helps maintain the best texture, especially for the steak.

Freezing

This Roasted Butternut Squash, Brussels Sprouts, and Flank Steak Dinner Recipe freezes fairly well, especially the roasted vegetables. Place cooled ingredients in freezer-safe containers or bags, removing as much air as possible, and freeze for up to 2 months. Note that the steak is best frozen if sliced first to make reheating easier and quicker.

Reheating

To reheat, gently warm the steak and vegetables in a skillet over low heat, adding a small splash of water or broth if needed to prevent drying out. Avoid microwaving as it can make the steak tough and the vegetables mushy. Cover the skillet with a lid for even warming.

FAQs

Can I use a different cut of steak for this recipe?

Absolutely! While flank steak is great for its quick cooking and tenderness when sliced properly, skirt or hanger steak can also be used and provide similar rich flavor and texture. Just adjust cooking times according to thickness.

What if I don’t have fresh thyme on hand?

Dried thyme can be substituted, but use about half the amount since dried herbs are more concentrated. Alternatively, rosemary or oregano can add nice complementary herbal notes.

Can this recipe be made vegetarian?

Definitely! Simply omit the flank steak and consider adding a hearty plant-based protein like roasted chickpeas or marinated tofu. The roasted butternut squash and Brussels sprouts are delicious enough to stand alone.

Is it necessary to peel the butternut squash?

Yes, peeling is recommended for the best texture and to avoid any tough or bitter skin. It may seem a little tedious, but the payoff in tenderness and sweetness is well worth the effort.

How do I know when the Brussels sprouts are perfectly roasted?

They should be tender on the inside with caramelized, slightly crispy edges. If they’re too soft or soggy, they may have steamed instead of roasted, which happens if the pan is overcrowded. Make sure to keep them in a single layer for the best results.

Final Thoughts

This Roasted Butternut Squash, Brussels Sprouts, and Flank Steak Dinner Recipe has quickly become one of my all-time favorite go-to meals when I want something balanced, flavorful, and just a little bit special. It’s approachable, satisfying, and offers a wonderful combination of textures and tastes that impress without stress. I hope you enjoy making and savoring it as much as I do — it’s perfect for sharing with loved ones on cozy weeknights or when entertaining friends!

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Roasted Butternut Squash, Brussels Sprouts, and Flank Steak Dinner Recipe

Roasted Butternut Squash, Brussels Sprouts, and Flank Steak Dinner Recipe

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4.3 from 4 reviews

This hearty and flavorful recipe combines roasted butternut squash and Brussels sprouts with perfectly seared flank steak coated in a garlic butter thyme sauce. The vegetables are roasted to caramelized perfection, while the steak is seasoned with smoked paprika and chili powder for a smoky, mildly spicy kick. Ideal for a nutritious and satisfying dinner, this dish offers a delicious blend of roasted vegetables and tender meat all cooked on the stovetop and in the oven.

  • Total Time: 1 hour 10 minutes
  • Yield: 4 servings

Ingredients

Butternut Squash

  • 3 cups butternut squash, peeled, seeded, cubed
  • 1 tablespoon olive oil
  • Salt and pepper to taste

Brussels Sprouts

  • 12 oz Brussels sprouts, trimmed and halved
  • 1 tablespoon olive oil
  • Salt and pepper to taste

Flank Steak and Sauce

  • 1 lb flank steak
  • 1/4 teaspoon smoked paprika
  • 1/4 teaspoon chili powder
  • 1/4 teaspoon salt (plus extra to season steak)
  • Freshly ground black pepper, to taste
  • 2 tablespoons olive oil
  • 3 tablespoons butter
  • 5 cloves garlic, minced
  • 1/4 ounce fresh thyme

Instructions

  1. Preheat Oven and Prepare Butternut Squash: Preheat your oven to 400°F. Make sure your butternut squash is peeled, seeded, and cut into cubes. Toss the cubes with 1 tablespoon olive oil, salt, and pepper in a large bowl.
  2. Roast Butternut Squash: Spread the squash evenly on a parchment paper-lined baking sheet without overcrowding. Roast in the middle rack of the oven for about 30 minutes until tender and caramelized. Remove from the oven and set aside.
  3. Prepare Brussels Sprouts: While the squash roasts, trim ends and remove any yellow leaves from the Brussels sprouts, then slice them in half. Toss them with 1 tablespoon olive oil, salt, and pepper in a medium bowl.
  4. Roast Brussels Sprouts: Spread the Brussels sprouts on another parchment paper-lined baking sheet evenly. Roast in the oven at 400°F for 20 to 30 minutes until browned and tender. You can roast them simultaneously with the butternut squash. Remove from the oven and set aside.
  5. Season Flank Steak: Pat the flank steak dry and season both sides with smoked paprika, chili powder, 1/4 teaspoon salt, and freshly ground black pepper generously.
  6. Preheat Cast-Iron Skillet: Heat a large cast-iron skillet over medium heat for 2 minutes to properly warm it. Add 2 tablespoons of olive oil.
  7. Sear Flank Steak: Place the flank steak in the skillet, cooking over medium heat without moving it for 5 minutes to create a nice sear.
  8. Cook Steak to Desired Doneness: Flip the steak over, reduce heat to low-medium, and cook for another 5 minutes or more until it reaches the desired internal temperature—130°F for medium-rare or 145°F for medium. Remove steak from skillet and place on a plate to rest.
  9. Slice Steak: Slice the rested flank steak thinly across the grain into approximately 1-inch wide strips.
  10. Make Garlic Butter Sauce: In the now-empty cast-iron skillet, add the butter and minced garlic. Cook on low-medium heat for 1 to 2 minutes until the garlic softens and becomes fragrant.
  11. Combine Steak and Sauce: Add the sliced steak and fresh thyme to the skillet, coating the meat with the garlic butter sauce. Warm together over low-medium heat for 1 to 2 minutes. Remove from heat.
  12. Warm Vegetables and Combine: Add the roasted butternut squash and Brussels sprouts to the skillet with the steak. Stir gently to warm all ingredients through. If your skillet is not large enough, do this in batches.
  13. Final Seasoning and Serve: Top with additional fresh thyme and season to taste with salt and freshly ground black pepper. Serve warm, enjoying the perfect fusion of roasted vegetables and savory garlic butter steak.

Notes

  • For best results, use a sharp knife to properly peel and cube the butternut squash.
  • Make sure not to overcrowd the vegetables on the baking sheets for even roasting and caramelization.
  • Let the steak rest after cooking to retain the juices before slicing.
  • Use a meat thermometer to ensure steak is cooked to your preferred doneness safely.
  • You can substitute flank steak with skirt steak or sirloin if preferred.
  • Fresh thyme can be replaced with rosemary or oregano for a different herb flavor.
  • Author: Olivia
  • Prep Time: 15 minutes
  • Cook Time: 55 minutes
  • Category: Main Course
  • Method: Roasting and Stovetop
  • Cuisine: American

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