white castle-like sliders

1. Evenly spread the onions on the bottom of a 9x13 inch baking dish. Gently press the ground beef on top of the onion flakes. Press evenly making one giant pattie. Sprinkle with seasoned salt. Bake in a 400 degree oven for 20 minutes. Using a paper towel, pat the excess grease from the top of the pattie. Top with cheddar cheese, return to oven for 2 more minutes. Remove from oven, let set 5 minutes then cut into 24 patties. Slice open and separate each party roll. Place bottom of rolls on a large platter. Using a spatula lift pattie with onion layer onto each bun bottom. Top each slider with a pickle slice then the bun lid. Serve immediately. Makes 24 Sliders.