If you love big flavor without the fuss, these Keto Steak & Pepper Roll-Ups with Garlic Butter Sauce will hit the spot. Thin slices of steak wrapped around colorful bell peppers and onions, seared until caramelized, then drizzled with melted garlic butter—it’s the kind of dinner that feels special but comes together fast. The best part: it’s naturally low-carb and totally satisfying.

Pair with a crisp salad or cauliflower mash, and you’ve got a weekday winner that tastes restaurant-quality.

What Makes This Recipe So Good

Big flavor, minimal ingredients. Steak, peppers, onions, and a quick garlic butter sauce—simple, bold, and delicious.
Perfect for keto. It’s naturally low in carbs and high in protein and healthy fats, so it keeps you full without weighing you down.
Fast and flexible. Ready in about 30 minutes, and you can swap veggies or seasonings to match your mood.
Great texture. Tender steak, sweet softened peppers, and a silky butter sauce—every bite is balanced.
Works for meal prep. Make a batch, reheat gently, and you’re set for a couple of days.

Shopping List

Steak: Thinly sliced flank steak or sirloin (about 1.5 pounds)
Bell peppers: One red, one yellow, one green, sliced into thin strips
Onion: One small red or yellow onion, thinly sliced
Garlic: 4–5 cloves, minced
Butter: 6 tablespoons, preferably unsalted
Olive oil or avocado oil: For searing
Fresh parsley: Chopped, for garnish
Toothpicks or kitchen twine: To secure roll-ups
Seasonings: Sea salt, black pepper, smoked paprika, garlic powder
Optional: Crushed red pepper flakes, lemon zest, or a splash of lemon juice

How to Make Steak Pepper Roll Ups

Prep the steak. Lay the thin slices on a board and gently pound with a meat mallet to even thickness (about 1/4 inch). Season both sides with salt, pepper, garlic powder, and smoked paprika.
Slice the veggies. Cut the peppers and onion into thin, even strips so they cook quickly and roll up easily.
Sauté the veggies. Heat a large skillet over medium-high with a bit of oil. Cook peppers and onion with a pinch of salt until slightly softened and lightly charred at the edges, about 4–5 minutes.
Transfer to a plate.
Assemble the roll-ups. Place a small bundle of peppers and onion near one end of each steak slice. Roll tightly and secure with a toothpick or short piece of twine.
Sear the roll-ups. Add more oil to the skillet and heat over medium-high. Place the roll-ups seam side down and sear on all sides until browned, about 6–8 minutes total.
Reduce heat if needed to prevent burning.
Finish to tenderness. If your steak is thicker or you prefer more doneness, reduce heat to medium-low and cover for 2–3 minutes. Don’t overcook; you want the steak tender.
Make the garlic butter sauce. In a small saucepan (or the cleared skillet), melt the butter over low heat. Add minced garlic and cook gently 30–60 seconds until fragrant.
Season with a pinch of salt, pepper, and optional red pepper flakes. Stir in a touch of lemon zest or juice if you like brightness.
Serve and garnish. Remove toothpicks, plate the roll-ups, and spoon the warm garlic butter over the top. Finish with chopped parsley.

Keeping It Fresh

Storage: Place cooled roll-ups in an airtight container for up to 3 days in the fridge.
Reheating: Warm gently in a covered skillet over low heat with a splash of broth or a pat of butter to keep them moist.
Avoid microwaving on high, which can toughen the steak.
Freezing: You can freeze cooked roll-ups for up to 2 months. Thaw overnight in the fridge and reheat slowly. The peppers will soften more after freezing, but the flavor will still be great.

Why This Is Good for You

Low-carb and satisfying. Steak and butter deliver protein and fat, which help keep you full and support stable energy on keto.
Nutrient-dense veggies. Bell peppers bring vitamin C, color, and natural sweetness without many carbs.
Better fats. Using real butter and olive or avocado oil adds flavor and supports satiety.
If you prefer, choose grass-fed butter.
Simple ingredients. No fillers, no sugar-laden sauces—just clean, whole foods and bold seasoning.

What Not to Do

Don’t use thick steak slices. Thick cuts won’t roll well and tend to be chewy. Ask your butcher to slice thin, or slice partially frozen steak at home.
Don’t skip seasoning. Steak needs salt and spices to shine. Season inside and out for best flavor.
Don’t overcrowd the pan. Overcrowding traps steam and prevents browning.
Sear in batches if needed.
Don’t scorch the garlic. Garlic burns fast; keep the heat low for the sauce and remove from heat as soon as it smells fragrant.
Don’t overcook. Aim for tender, juicy steak. Pull from heat once browned and just cooked through.

Variations You Can Try

Italian style: Add Italian seasoning, a touch of balsamic vinegar to the butter sauce, and finish with shaved Parmesan.
Spicy kick: Use crushed red pepper and a pinch of cayenne in the rub, and swirl hot sauce into the garlic butter.
Herb and lemon: Add fresh thyme or rosemary to the butter and brighten with extra lemon zest.
Mushroom upgrade: Sauté sliced mushrooms with the peppers or stir them into the garlic butter for extra umami.
Bacon wrap: Wrap each roll-up with a half slice of bacon before searing. Lower the heat and cook a bit longer to render the fat.
Dairy-free option: Swap butter for ghee (if tolerated) or olive oil; add a splash of coconut aminos for depth.

FAQ’s For Steak Pepper Roll Ups

What’s the best cut of steak for roll-ups?

Flank steak and sirloin tip work well because they slice thin and stay tender. Skirt steak can also work, but it’s best sliced against the grain and cooked quickly.

How thin should the steak be?

Aim for about 1/4 inch thick. If it’s thicker, gently pound it with a mallet between parchment to even it out.

Can I make these in the oven?

Yes. Sear the roll-ups on the stove first for color, then finish in a 400°F (205°C) oven for 5–7 minutes, depending on thickness.

Are bell peppers keto-friendly?

Yes. They have a modest amount of carbs and bring fiber and vitamins. Keep portions reasonable and you’ll stay on track.

What can I serve with these?

Great sides include cauliflower mash, garlicky green beans, a simple arugula salad, or roasted asparagus. Keep it light to balance the rich butter sauce.

Can I prep them ahead?

You can assemble the roll-ups up to a day in advance. Store covered in the fridge. Sear just before serving for best texture.

How do I keep the roll-ups from falling apart?

Use toothpicks or kitchen twine and place the seam side down in the pan first. Don’t overstuff with vegetables.

Is there a dairy-free sauce alternative?

Use olive oil or ghee and infuse with garlic, herbs, and a splash of lemon. You’ll still get a silky, flavorful drizzle.

In Conclusion

Keto Steak & Pepper Roll-Ups with Garlic Butter Sauce are a simple way to make steak night feel special. They’re quick to assemble, cook fast, and offer a great balance of protein, veggies, and rich, buttery flavor. Keep the technique straightforward—thin steak, hot pan, gentle garlic butter—and you’ll have a reliable, crowd-pleasing dinner any night of the week.