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Introduction
If you’re someone who misses biting into a warm, gooey, cheesy Philly cheesesteak—but you’re sticking to your keto lifestyle—you’re going to fall head over heels for this recipe. These Keto Cheesesteak Sandwiches bring you all the juicy, savory flavors of the classic sandwich, minus the carbs. Think tender, thinly sliced steak, caramelized onions, and melty cheese nestled inside a low-carb “bread” or lettuce wrap. It’s a total comfort meal that doesn’t kick you out of ketosis.
Perfect for lunch, dinner, or even meal prepping for the week, this recipe satisfies those hearty sandwich cravings without guilt. Whether you’re new to keto or a seasoned low-carb eater, this is one of those recipes you’ll come back to again and again.
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Why You’ll Love This Recipe
These Keto Cheesesteak Sandwiches are a game-changer for so many reasons:
- Flavor-packed: Juicy beef, sautéed onions and peppers, and gooey cheese in every bite.
- Low in carbs: No traditional bread—only keto-friendly options that won’t spike your blood sugar.
- Customizable: Use your favorite cheese, add mushrooms or jalapeños, or spice it up to suit your mood.
- Quick & easy: Ready in under 30 minutes, making it perfect for busy weeknights.
- Meal-prep friendly: Makes great leftovers and stores beautifully in the fridge.
This is the kind of low-carb recipe that doesn’t feel like you’re missing out. It’s hearty, satisfying, and fits perfectly into your keto goals.
My Personal Experience
I first tried making this recipe on a chilly evening when I was seriously craving something hearty. I didn’t want to settle for eggs again—and I certainly wasn’t about to give in to bread. So I thought, why not recreate the ultimate comfort food: a Philly cheesesteak?
I used thinly sliced beef I had in the freezer, caramelized some onions, added green bell peppers for a little crunch, and topped it all with melty provolone. I wrapped it up in a crispy, toasted chaffle the first time, and the second time I went with a butter lettuce wrap—it was incredible both ways. It’s now in my weekly rotation. My family (not even keto!) asks for it constantly.
Required Equipment
🥩 Skillet or Cast Iron Pan
A heavy-bottomed skillet or cast iron pan is ideal for searing the steak. It helps you get that beautiful brown crust and locks in the flavor.
🔪 Sharp Knife & Cutting Board
You’ll need a sharp knife to slice your steak thinly and prep your veggies. This makes the cooking process quicker and ensures even cooking.
🧀 Spatula or Tongs
Helpful for flipping and stirring the steak and veggies while keeping everything from sticking or overcooking.
🍞 Optional: Waffle Maker or Griddle (for chaffle buns)
If you’re going with chaffle buns instead of lettuce wraps or store-bought keto bread, you’ll need a waffle maker to make the buns crispy and golden.
Ingredients & Substitutions
- 1 lb ribeye or sirloin steak, thinly sliced
Ribeye is ideal for its marbling and tenderness. You can also use flank steak or sirloin if that’s what you have. - 1 medium onion, thinly sliced
Adds natural sweetness. You can use red, white, or yellow onions. - 1 green bell pepper, sliced
Adds crunch and color. Red or yellow peppers work too. - 1 tbsp avocado oil or olive oil
For sautéing and adding healthy fats. Butter works too, but oil gives a cleaner sear. - 1 tsp garlic powder
Optional, but adds nice flavor depth. - Salt and black pepper, to taste
- 4 slices provolone cheese
Classic for cheesesteaks! Mozzarella or cheddar are good substitutes, but provolone melts perfectly. - Keto-friendly buns, lettuce wraps, or chaffles (4 servings)
You can use store-bought low-carb buns, make quick almond flour chaffles, or go fresh with lettuce wraps for a lighter bite.
How to Make Keto Cheesesteak Sandwiches
- Prep the Steak
If your steak isn’t pre-sliced, freeze it for 30 minutes to make slicing easier. Slice it very thinly against the grain for tenderness. - Sauté the Veggies
Heat oil in a large skillet over medium heat. Add the sliced onions and bell peppers. Cook for about 8–10 minutes until softened and slightly caramelized. Remove and set aside. - Cook the Steak
In the same pan, add a bit more oil if needed. Increase heat to medium-high. Sear the steak slices in batches to avoid overcrowding. Season with salt, pepper, and garlic powder. Cook until browned and just cooked through (about 2–3 minutes). - Melt the Cheese
Add veggies back to the pan. Lay cheese slices over the steak and let them melt for a minute. Cover with a lid if needed to help melt the cheese evenly. - Assemble the Sandwiches
Spoon the cheesy steak and veggie mix into your keto buns, chaffles, or lettuce wraps. Serve hot and enjoy!
Tips for This Recipe
- Slice thin! Thin steak slices cook fast and stay tender. A half-frozen steak is easier to slice.
- Don’t overcrowd the pan. This ensures your steak gets a nice sear instead of steaming.
- Use a lid to melt cheese quickly. Especially helpful if you’re not using oven-safe dishes.
- Toast your keto buns. Whether you’re using store-bought or homemade, toasting adds structure and flavor.
Optional Additions
- Mushrooms: Sauté with the onions for earthy flavor.
- Jalapeños: Add for a spicy kick.
- Hot Sauce or Mustard: A little drizzle adds punch.
- Cream Cheese Spread: Spread a thin layer on the bun for a Philly-style twist.
Serving Ideas
- Serve with a side of keto coleslaw, zucchini fries, or cauliflower mash.
- Perfect for game nights, family dinners, or meal prep.
- Make mini versions as keto party sliders using small chaffles or lettuce cups.
Storage Recommendations
- Refrigerate: Store leftovers in an airtight container for up to 4 days.
- Reheat: Warm in a skillet over low heat or microwave for 1–2 minutes.
- Freezer: The cooked filling (without the bun) freezes well for up to 2 months.
Frequently Asked Questions
Can I use ground beef instead of sliced steak?
Yes! It won’t be the same texture, but the flavor is still amazing. Just cook until browned and fully done.
What’s the best keto bread for this?
Chaffles or almond flour buns are great options. Lettuce wraps work for a low-calorie version.
Can I prep this ahead of time?
Absolutely. Cook the filling and refrigerate it. Reheat and assemble when ready to eat.
Can I make this dairy-free?
Yes! Just skip the cheese or use a dairy-free keto alternative.
Nutritional Breakdown (Per Serving)
Based on using lettuce wraps and provolone cheese.
- Calories: 385
- Total Carbs: 6g
- Net Carbs: 4g
- Protein: 30g
- Fat: 28g
- Fiber: 2g
Keto Cheesesteak Sandwiches Recipe
Ingredients
- 1 lb ribeye or sirloin steak thinly sliced
- 1 medium onion sliced
- 1 green bell pepper sliced
- 1 tbsp oil
- 1 tsp garlic powder
- Salt and pepper to taste
- 4 slices provolone cheese
- 4 keto buns chaffles, or lettuce wraps
Instructions
- Slice steak thinly against the grain.
- Sauté onions and peppers in oil until soft; set aside.
- Sear steak in batches in the same skillet. Season well.
- Return veggies to pan, add cheese on top, cover to melt.
- Spoon into buns, chaffles, or wraps. Serve hot.
I’m so excited to hear how this recipe turned out for you! 😊 Don’t forget to follow us on Instagram and Facebook for daily keto inspiration, tasty recipes, and all the support you need to crush your goals. Want to make keto cooking even easier? Get a Keto Instant Pot Recipes Book filled with quick, delicious, and low-carb meals—perfect for busy days! Grab your copy today! 🚀
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