Prep
0-15 min
Cook
14 MIN
Calories
440
Ingredients
1 lb
(450 g) extra-lean ground beef
4
Kraft Singles Cheese Slices
4
thick onion slices
4
hamburger buns
1 tbsp
Heinz Dijon Mustard
1 tsp
horseradish
Instructions
Step 1
Heat barbecue to medium-high heat.
Step 2
Shape meat into 4 (1/2-inch-thick) patties.
Step 3
Grill 4 to 6 min. on each side or until done (160°F). Top with Singles; grill 1 min. or until melted. Meanwhile, place onions and buns, cut-sides down, on grill; cook 1 to 2 min. or until onions are lightly browned and buns are lightly toasted, turning onions once.
Step 4
Mix remaining ingredients; spread onto bottom halves of buns. Fill buns with cheeseburgers and onions.