CLASSIC CHEESEBURGERS WITH GRILLED ROMAINE & ONIONS
prep 30 minutes grill 10 minutes
1 large red onion, sliced 1/2 inch thick
2 Tbsp. extra virgin olive oil
Kosher salt and freshly ground black pepper
21/4 lb. ground beef chuck (80% lean)
6 oz. sharp cheddar cheese, thinly sliced
6 hamburger buns, split
1/2 small heart romaine lettuce
1/4 cup mayonnaise
1. In large skillet over medium- low heat, cook onion in 1 Tbsp. hot olive oil, keeping slices intact. Season with salt and pepper. Cook 5 minutes, occasionally pressing with spatula to cook evenly. Turn onions carefully, keeping slices intact; cook 5 minutes more until softened and light brown. (Or brush slices with oil; grill with burgers 5 minutes each side until browned.)
2. Shape ground chuck into six 3/4- inch-thick patties. Slightly indent center of each patty. Season patties with salt. Grill patties, covered, over medium heat 10 to 12 minutes, until done ( 160° F), turning once. Top with cheese the last 1 minute of cooking time.
3. Meanwhile, lightly toast buns on grill. Brush romaine heart with remaining 1 Tbsp. oil. Grill 3 minutes until browned, turning once. Remove from grill; separate into leaves. Spread buns with mayonnaise. Layer patties, onions, and romaine. Makes 6 burgers.
per burger 587 cal, 30 g fat ( 10 g sat. fat), 142 mg chol, 725 mg sodium, 29 g carb, 2 g fiber, 6 g sugars, 49 g pro.