The morning-after breakfast that hits hard. Smashed beef, melty provolone, a fried egg, all on a low carb bun.
There are mornings when cereal isn’t going to cut it. Mornings when you need real food — something hot, salty, savory, and made to fix you. This keto smashed burger with a fried egg is exactly that.
It’s the kind of breakfast that takes about 10 minutes to make and feels like a reset button. Crispy-edged smashed beef with that signature lacy brown crust, melted provolone, a perfectly fried egg with a runny yolk, and a soft low carb bun to hold it all together. Whether you’re recovering from a rough night or just need a breakfast that actually fills you up, this one delivers.
At 1g net carbs and 30.6g protein per serving, it’s keto, low-carb, and the kind of meal that makes “keto breakfast” sound less like a sacrifice and more like an upgrade.
Why You’ll Love This Recipe
- 1g net carb and 30.6g protein. Real food, real macros.
- Ready in about 10 minutes. One pan, one cooking session, done.
- That crispy smashed-burger crust. The whole reason smashed burgers are having a moment — the lacy brown edges are everything.
- Customizable. Top with whatever low-carb toppings you love.
- Breakfast, lunch, or “I had a rough night.” No wrong time for this.
Ingredients You’ll Need
- 3 oz 80/20 ground beef, formed into a ball — the 20% fat is what gives you the crispy edges. Don’t skimp on the fat ratio here.
- 1 slice provolone — melts beautifully and has that mild, slightly tangy flavor that pairs perfectly with beef and egg.
- 1 egg — for the fried egg on top. A runny yolk is the move.
- 1 Hero hamburger bun — keeps the whole thing low carb without giving up the soft bun experience.
- Salt, pepper, and any seasonings you love — keep the burger simple and let the meat shine.
- High-heat oil — for frying the egg.
- Low carb toppings of your choice — lettuce, tomato, pickles, onion, hot sauce, mayo, anything you love.
How to Make a Keto Smashed Burger
Step 1: Season the Beef
Roll the ground beef into a loose ball and season as desired. Don’t overwork it — you want the meat loose so it smashes beautifully and gets that crispy crust.
Step 2: Smash and Sear
Heat a frying pan until very hot. Drop the beef ball into the center of the pan, then immediately press it down hard with a sturdy spatula to smash it really thin. The thinner you go, the crispier the edges. Let it sit undisturbed — don’t move it.
Step 3: Flip and Melt
When the burger releases from the pan on its own (a sign the crust has formed), flip it and immediately top with the slice of provolone. Cover the pan briefly to help the cheese melt fully.
Step 4: Set the Burger Aside
Once the cheese is melted, remove the burger from the pan and set it aside on a plate.
Step 5: Fry the Egg
In the same hot pan, add a splash of high-heat oil and let it get hot. Gently slide the egg into the oil and cook it to your liking — runny yolk is the move here, but cook it however you love.
Step 6: Build the Burger
Warm the Hero bun if you like. Place the burger on the bottom bun, top with the fried egg, and add your favorite low-carb toppings. Close it up and dig in.
Expert Tips for the Best Results
- Get the pan really hot before smashing. A screaming-hot pan is what creates that lacy brown crust. A cold pan gives you steamed gray meat. Big difference.
- Don’t move it after smashing. Let the burger sit and form its crust. Moving it too early tears the crust off.
- Wait for the release. The burger will tell you when it’s ready to flip — it’ll lift off the pan cleanly when the crust is fully formed.
- 80/20 beef is non-negotiable. Leaner beef won’t give you the crispy edges or the flavor. The fat is what makes a smashed burger a smashed burger.
- Cook the egg in the same pan. Don’t waste those drippings — frying the egg in the leftover beef fat adds an extra layer of flavor.
Variations & Substitutions
- Different cheese — cheddar, American, pepper jack, or Swiss all work beautifully.
- Double up — for a bigger appetite, smash two patties instead of one and stack them with cheese between.
- Skip the bun — eat it open-faced, wrapped in lettuce, or just plain with the egg on top.
- Add bacon — because everything is better with bacon. Cook it first, then use the rendered fat for the burger and egg.
- Spicy version — add jalapeños, pepper jack cheese, and a drizzle of hot sauce or sriracha mayo.
- No Hero bun? Cloud bread, a chaffle, or a lettuce wrap all work as alternatives.
Storage & Meal Prep
Use your nose on this one — keep it until it either smells off or you don’t want to look at it anymore.
That said, smashed burgers are really a “make and eat” situation. The whole point is hot, fresh, just-off-the-pan. The crispy crust softens fast in storage, and a reheated fried egg is never the same as a fresh one.
For meal prep: You can cook the burger patty ahead and reheat it quickly in a pan, but cook the egg fresh when you’re ready to eat. Pre-warmed buns reheat well in a low oven.
Nutrition Information (Per Serving)
- Calories: 419
- Fat: 28.2g
- Carbs: 23g
- Fiber: 21g + 1g sugar alcohol
- Net carbs: 1g
- Protein: 30.6g
Frequently Asked Questions
Why is the fiber so high? The fiber comes from the Hero bun, which is formulated to be high in fiber and very low in net carbs. That’s what allows this burger to come in at just 1g net carbs even though the total carbs look higher.
What’s a smashed burger and why is it different from a regular burger? A smashed burger is exactly what it sounds like — a ball of beef pressed hard against a hot pan to create a thin patty with crispy, lacy brown edges. The technique creates more surface area for the Maillard reaction (the browning that develops flavor), giving you a more flavorful, crispier-edged burger than the standard thick patty.
Why call this a “hangover” burger? Because it’s exactly the kind of meal you crave the morning after a rough night — hot, salty, protein-packed, and ready in 10 minutes. The fried egg with the runny yolk adds that classic “fix me” breakfast energy. But it works any day of the week, hangover or not.
Can I use a different bun? Yes — any low carb bun works. Hero is what I use because the macros are great and the texture holds up. If you don’t have one, try a cloud bread, chaffle, or lettuce wrap.
Can I make this dairy-free? You can skip the cheese, or use a dairy-free slice that melts well. The burger itself is dairy-free.
Is this good for keto? Very. At 1g net carbs and 30.6g protein per serving, it fits comfortably into any keto, low-carb, or high-protein eating plan.
If you make this, tag @ketowilder on Instagram — I want to see your stack.

