Cheesy Smashed Burgers
with Old Bay Fries, Caramelized Onion & Special Sauce
- Eggs
- Milk
- Soy
- Wheat
These burgers are sure to be a smash hit. The secret is all in the texture—the crispy, craggy edges, achieved when balls of ground beef are pressed down in a hot pan with a spatula to create super-thin, crispy burgers. Topped with gooey white cheddar, the patties are sandwiched between potato buns with caramelized onion and a homemade special sauce that’s also perfect for pairing with Old Bay fries on the side—and will elicit major “oohs” and “ahhs” from your dining companions.
Ingredients
1 unit
Yellow Onion
12 ounce
Potatoes
1 unit
OLD BAY® Seasoning
2 tablespoon
Mayonnaise
(Contains: Eggs)
1 unit
Ketchup
2 teaspoon
Dijon Mustard
10 ounce
Ground Beef
½ cup
White Cheddar Cheese
(Contains: Milk)
2 unit
Potato Buns
(Contains: Milk, Eggs, Soy, Wheat)
Not included in your delivery
Salt
Pepper
4 teaspoon
Cooking Oil
1 teaspoon
Sugar
Nutrition Values
Utensils
Cooking Steps
• Adjust rack to top position and preheat oven to 425 degrees. Wash and dry produce. • Cut potatoes into ½-inch-thick wedges. Halve, peel, and thinly slice onion.
• Toss potatoes on a baking sheet with a drizzle of oil and half the Old Bay Seasoning (you’ll use more later). Season lightly with salt and pepper. TIP: No need to season generously— there’s already salt and pepper in the seasoning! • Roast on top rack until browned and crispy, 20-25 minutes.
• While potatoes roast, heat a large drizzle of oil in a medium, preferably nonstick, pan over medium-high heat. Add onion; cook, stirring occasionally, until browned and softened, 8-10 minutes. • Add 1 tsp sugar (2 tsp for 4 servings) and a splash of water; cook until onion is caramelized and jammy, 2-3 minutes more. Season with salt and pepper. • Turn off heat; transfer to a small bowl.
• Meanwhile, in a second small bowl, combine mayonnaise, ketchup, mustard, and as much remaining Old Bay Seasoning as you like. Set aside. • Form beef* into two equal-size balls (four balls for 4 servings); season all over with salt and pepper.
• Heat a drizzle of oil in pan used for onion over medium-high heat. Once pan is hot, add beef. Firmly flatten each ball with a spatula to create very thin patties. (TIP: Do so carefully; oil may splatter a bit.) Cook to desired doneness, 3-4 minutes per side. (Don’t worry if the patties aren’t perfectly round—those irregular edges will turn crispy.) • In the last 1-2 minutes of cooking, top patties with cheddar; cover pan to melt cheese. Remove from heat.
• While patties cook, halve and toast buns. • Divide buns between plates and fill with patties, caramelized onion, and half the special sauce. Serve burgers with Old Bay fries on the side and remaining special sauce for dipping.
Ground Beef is fully cooked when internal temperature reaches 160°.
Customer reviews
Review summary
Updated on Mar 2026- Flavor: Many loved the juicy, flavorful burgers, especially praising the caramelized onions and special sauce 🍔.
- Ease of prep: Quick and easy to make, though some found smashing the patties tricky or messy.
- Suggestions: Consider adding bacon, tomato, or pickles; some preferred less Old Bay seasoning on the fries.
- Portions: Several mentioned the burger patties or potato wedges were smaller than expected.
- Texture: A few found the ground beef texture unusual; most enjoyed the crispy edges of the smashed patties.
Reviews from our home cooks
SO delicious! My first time making smashed burgers, and my boyfriend was already begging me to make this again after we finished eating. My one change (as usual with caramelized onions with these recipes) is that the onions never have the appropriate cooking time to achieve the desired softness/caramelization, so I cooked them significantly longer (on a lower temp after initial higher heat). They came out fantastic!
The Cheesy Smashed Burgers truly exceeded our expectations. They were a hit with my family. The simplicity of the recipe combined with the delicious taste made it a perfect meal. If you're looking for a burger experience that will leave your taste buds begging for more, I highly recommend trying out the Cheesy Smashed Burgers. You won't be sorry!
Burgers were juicy and delicious! Loved the caramelized onions with the cheddar cheese and potatoe rolls. Would definitely get again but I would not use so much of the Bay seasoning as it was a bit to spicy for me. It would be nice with some bacon jam!
Flavors went really well together. The old bay seasoning tasted great on the wedges - 100% better than HelloFresh's own fry seasoning which we all detest. The burger sauce with the old bay seasoning was a game changer, will definitely get again and recreate this sauce in other meals too!
These are the BEST smash onion burgers! GREAT Flavors and easy to cook. The fries are tasty as well. Always loved Old Bay on my seafood never thought to put it on fries. Well Done!
DELICIOUS doesn't even describe how perfectly tasty this meal was. I wish it was available every week for the perfect quick delicious dinner option. This recipe literally matched some of the best burgers I've had in five star rated restaurants and I think better than my Michelin rated chef friend's burgers... but we won't tell him. The recipe if you follow it exactly- the burgers finished exactly when the timer went off on my oven for the fries. It was absolutely perfect timing. The potato buns were delicious and crispy after I toasted them in the pan. The old bay seasoning on the fries, and in the sauce mixture was chef's kiss. This was the first time I've ever sautéed onions, and added the sugar and water - oh my God, they were delicious. I cannot tell you how much we enjoyed this meal. Please add it as a weekly menu option please please please!!!!
Tasty, but we can't figure out how to cook burgers in a pan without having an oil splattering problem, even when using a splatter guard (which we have to lift to flip them or check their temp). Also, the old bay seasoning was too spicy for one of us, who ended up having to forego the potatoes. I'd pick the bacon jam burgers over these if given the choice.
Yet another great burger. Smash technique is a nice change, and creates great texture. This simple solid burger is made great with the old bay flavored special sauce. Very salty, but great.
I really like the smash burgers. They're easy to cook and they're so good. Especially the potato wedges. I never thought about adding Old Bay seasoning to potatoes or to a sauce! I'm hooked.
Great dinner! Never would I have thought to season fries with old bay, and they cooked in the oven perfectly. The burgers did not disappoint with the sauce, really good. This is our 3rd meal that we have tried, and so far all three have earned 5 stars, and I have really picky eaters.
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