Philly Cheesesteak Dip

Cut 1-1/2 of each color pepper into 1/2-inch-wide strips; reserve for later use. Chop remaining pepper pieces; combine in medium bowl. Remove 3 Tbsp. of the chopped peppers; reserve for garnish.

Heat 1 Tbsp. oil in large skillet on medium-high heat. Add onions and remaining chopped peppers; cook 3 to 5 min. or until crisp-tender, stirring frequently. Remove vegetables from skillet; set aside.

Heat remaining oil in skillet. Add meat; cook 2 min. or until done, stirring frequently.

Return cooked vegetables to skillet. Add cheeses, steak sauce and beer; mix well. Cook on medium heat 3 to 5 min. or until cheeses are completely melted and mixture is well blended, stirring frequently. Spoon into serving dish.

Garnish with reserved chopped peppers.

Serve with WHEAT THINS and reserved pepper strips for dipping.