0.3 lb mushrooms mixed fresh sliced (button and cremini)
1 Tbsp horseradish prepared kraft
1 lb ground beef lean
0.3 cup real mayo mayonnaise kraft
1 Tbsp olive oil
4 onion sandwich rolls split
0.5 cup onions red sliced
4 big swiss cheese kraft
Equipment
grill
aluminum foil
Directions
Heat grill to medium-high heat.
Shape meat into 4 (1/2-inch-thick) patties.
Place mushrooms and onions on sheet of foil; drizzle with oil.
Grill patties 5 to 6 min. on each side or until done (160F). Meanwhile, grill vegetables (on foil) 4 to 5 min. or until crisp-tender; remove from grill.
Top burgers with cheese.
Place rolls, cut-sides down, on grill. Cook 1 min. or until cheese is melted and buns are lightly toasted.
Mix mayo, horseradish and chives; spread onto rolls. Fill with burgers and vegetables.