Ingredients
2 green onions, thinly sliced2 tablespoons minced fresh parsley4 teaspoons Dijon mustard, divided 3 tablespoons dry bread crumbs2 tablespoons ketchup1/2 teaspoon salt1/2 teaspoon dried rosemary, crushed1/4 teaspoon dried sage leaves1 pound lean ground beef (90% lean)2 ounces cheddar cheese, sliced4 hamburger buns, split Optional toppings: Lettuce leaves, sliced tomato, mayonnaise and additional ketchup
Preparation
Preheat air fryer to 375°. In a small bowl, combine green onions, parsley and 2 teaspoons mustard. In another bowl, mix bread crumbs, ketchup, seasonings and remaining 2 teaspoons mustard. Add beef to bread crumb mixture; mix lightly but thoroughly.
Shape mixture into 8 thin patties. Place sliced cheese in center of 4 patties; spoon green onion mixture over cheese. Top with remaining patties, pressing edges together firmly, taking care to seal completely.
In batches, place burgers in a single layer on tray in air-fryer basket. Cook 8 minutes. Flip; cook until a thermometer inserted in burger reads 160°, 6-8 minutes longer. Serve burgers on buns, with toppings as desired.
