Juicy Grass-Fed Beef Burgers

• 1 teaspoon canola oil
• 3/4 cup finely chopped yellow onion
• 1/4 cup canola mayonnaise, divided
• 1 teaspoon garlic powder
• 1 teaspoon freshly ground black pepper
• 1 pound 93% lean grass-fed ground sirloin
• Cooking spray
• 4 (1/2-oz.) cheddar cheese slices
• 3 tablespoons ketchup
• 4 whole-wheat hamburger buns, toasted
• 4 (1/4-in.-thick) tomato slices
• 4 Bibb lettuce leaves
• 1 ounce dill pickle slices

1. Heat oil in a small skillet over medium-high. Add onion; saute 2 minutes. Reduce heat to medium; cook onion 5 minutes or until soft and caramelized, stirring frequently. Remove from heat; cool 5 minutes.
2. Combine caramelized onions, 2 tablespoons mayonnaise, garlic powder, pepper, and ground beef in a bowl, stirring just until combined. Gently shape mixture into 4 (1/3-inch-thick) patties.
3. Heat a grill pan or cast-iron skillet over high. Coat pan with cooking spray. Add patties; cook 3 minutes. Turn patties. Top each with 1 cheese slice; cook 2 minutes or to desired degree of doneness.
4. Spread ketchup evenly on bottom halves of buns. Spread remaining 2 tablespoons mayonnaise evenly on top halves of buns. Top bottom buns evenly with patties, tomato slices, lettuce leaves, and pickles. Cover with top halves of buns.

canola oil, yellow onion, canola mayonnaise, garlic, freshly ground black pepper, ground sirloin, cooking spray, cheddar cheese, ketchup, buns, tomato slices, dill pickle

Taken from www.myrecipes.com/recipe/juicy-grass-fed-beef-burgers (may not work)