A little beef goes a long way with the addition of onions and mushrooms. The vegetables also add moisture and flavor to the lean meat. Topped with a tangy homemade sauce, crunchy pickle slices, fresh lettuce and sharp cheddar, this burger is a real crowd-pleaser.
Erica Policow
| 1 small onion, cut into quarters | 1/8 teaspoon white vinegar | |
| 1/2 of an 8-ounce package button mushrooms, cleaned and trimmed | Salt and pepper, to taste | |
| 1 pound lean ground beef | 6 slices sharp cheddar cheese | |
| 1/4 teaspoon salt | 18 pickle rounds | |
| 2 tablespoons 0% Greek yogurt | 6 lettuce leaves | |
| 1 tablespoon ketchup | 6 whole-wheat buns | |
| 1 teaspoon sweet relish |
Using a food processor or a knife, finely chop the onions and mushrooms. In a large bowl, combine the ground beef, onion and mushrooms. Season with the salt and mix well. Divide the mixture into 12 portions and roll each into a ball. Flatten each ball between the palms of your hands. Set patties on a baking sheet and refrigerate while you make the sauce.
In a small bowl, combine the yogurt, ketchup, relish, vinegar, salt and pepper; set aside.
In a large nonstick skillet coated with cooking spray, cook the burgers over medium-high heat, in batches, about 3 minutes per side, or until cooked to your desired doneness. Top 6 of the patties with cheese slices as soon as they come out of the pan.
Assemble the burgers: Layer 2 patties (one of them with cheese), 3 pickle slices, a piece of lettuce and some of the sauce on each bun.