Cheddar Cheeseburgers with Sautéed Onion & Romaine Salad

Cheddar Cheeseburgers

with Sautéed Onion & Romaine Salad

35 MIN
2 Servings
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From the Test Kitchen

Tonight's cheeseburgers get a lift from a few of our favorite toppings: sharp cheddar, tender sautéed onion and creamy mustard sauce (a combination of Dijon and mayo). The sauce's piquant notes perfectly cut through the richness of the beef and cheese. On the side, a simple salad of romaine and carrot rounds out the meal with plenty of refreshing crunch.

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  • Nutrition
    PER SERVING
  • Calories
    Cals (est.)
fresh
ingredients
time-saving
tips & techniques
Prepare the ingredients:
1 Prepare the ingredients:

Preheat the oven to 425°F. Wash and dry the fresh produce. Halve the buns. Peel and mince the garlic; smash with the flat side of your knife until it resembles a paste (or use a zester). Peel the onion and thinly slice into rounds; separate the rings. Thinly slice the cheese. Cut off and discard the root end of the romaine; roughly chop the leaves. Peel the carrot; thinly slice on an angle. Peel the shallot and mince to get 2 tablespoons (you may have extra); place in a bowl with the vinegar.

Form the patties:
2 Form the patties:

In a medium bowl, combine the ground beef and garlic paste; season with salt and pepper. Gently mix until just combined. Using your hands, form the mixture into two 1/2-inch-thick patties. Transfer to a plate.

Cook the onion:
3 Cook the onion:

In a medium pan (nonstick, if you have one), heat a drizzle of olive oil on medium-high until hot. Add the onion and season with salt and pepper. Cook, stirring occasionally, 3 to 5 minutes, or until lightly browned and softened. Transfer to a bowl. Wipe out the pan.

Cook the patties:
4 Cook the patties:

In the same pan, heat a drizzle of olive oil on medium-high until hot. Add the patties and cook 3 to 4 minutes on the first side, or until browned. Flip and top with the cheese. Cook 3 to 4 minutes, or until the patties are browned and cooked to your desired degree of doneness and the cheese has melted. Carefully transfer to a plate.

Toast the buns & assemble the burgers:
5 Toast the buns & assemble the burgers:

While the patties cook, place the buns on a sheet pan, cut sides up. Toast in the oven 3 to 4 minutes, or until the edges are lightly browned and crispy. Remove from the oven and transfer to a clean, dry work surface. Spread the cut sides of the toasted bun tops with the creamy mustard sauce. Top the bun bottoms with ¼ of the romaine; season with salt and pepper. Top with the cooked patties and cooked onion. Complete the burgers with the bun tops.

Make the salad & plate your dish:
6 Make the salad & plate your dish:

To make the vinaigrette, slowly whisk 1 tablespoon of olive oil into the shallot-vinegar mixture until well combined; season with salt and pepper to taste. In a large bowl, combine the carrot and remaining romaine; season with salt and pepper. Add enough of the vinaigrette to coat the salad (you may have extra vinaigrette). Toss to combine; season with salt and pepper to taste. Divide the burgers and salad between 2 dishes. Enjoy!

Tips from Home Chefs

1 Prepare the ingredients:

Preheat the oven to 425°F. Wash and dry the fresh produce. Halve the buns. Peel and mince the garlic; smash with the flat side of your knife until it resembles a paste (or use a zester). Peel the onion and thinly slice into rounds; separate the rings. Thinly slice the cheese. Cut off and discard the root end of the romaine; roughly chop the leaves. Peel the carrot; thinly slice on an angle. Peel the shallot and mince to get 2 tablespoons (you may have extra); place in a bowl with the vinegar.

2 Form the patties:

In a medium bowl, combine the ground beef and garlic paste; season with salt and pepper. Gently mix until just combined. Using your hands, form the mixture into two 1/2-inch-thick patties. Transfer to a plate.

Form the patties:
Cook the onion:
3 Cook the onion:

In a medium pan (nonstick, if you have one), heat a drizzle of olive oil on medium-high until hot. Add the onion and season with salt and pepper. Cook, stirring occasionally, 3 to 5 minutes, or until lightly browned and softened. Transfer to a bowl. Wipe out the pan.

4 Cook the patties:

In the same pan, heat a drizzle of olive oil on medium-high until hot. Add the patties and cook 3 to 4 minutes on the first side, or until browned. Flip and top with the cheese. Cook 3 to 4 minutes, or until the patties are browned and cooked to your desired degree of doneness and the cheese has melted. Carefully transfer to a plate.

Cook the patties:
Toast the buns & assemble the burgers:
5 Toast the buns & assemble the burgers:

While the patties cook, place the buns on a sheet pan, cut sides up. Toast in the oven 3 to 4 minutes, or until the edges are lightly browned and crispy. Remove from the oven and transfer to a clean, dry work surface. Spread the cut sides of the toasted bun tops with the creamy mustard sauce. Top the bun bottoms with ¼ of the romaine; season with salt and pepper. Top with the cooked patties and cooked onion. Complete the burgers with the bun tops.

6 Make the salad & plate your dish:

To make the vinaigrette, slowly whisk 1 tablespoon of olive oil into the shallot-vinegar mixture until well combined; season with salt and pepper to taste. In a large bowl, combine the carrot and remaining romaine; season with salt and pepper. Add enough of the vinaigrette to coat the salad (you may have extra vinaigrette). Toss to combine; season with salt and pepper to taste. Divide the burgers and salad between 2 dishes. Enjoy!

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