In a large bowl, combine beef and 1/4 cup salsa verde. Season with salt and pepper. Shape beef mixture into 4 burger patties.
Grease grill or grill pan and heat to medium. Brush cut sides of buns with oil. Place bread on grill and heat until toasted, 1 to 2 minutes per side.
Place burgers on grill or grill pan and cook until desired doneness, about 3 to 4 minutes per side. During last minute of cooking, place 1 slice cheese on each burger and cover to melt.
In a small bowl, mash avocado until desired consistency. Season with salt and pepper. Spread 1 tablespoon mashed avocado on the bottom half of each toasted bun. Top avocado with salad mix. Top salad mix with cooked burgers. Finish each burger with 1 tablespoon salsa verde and top with bun. Serve immediately with tortilla chips.
Source: Hannaford fresh Magazine, July August 2024