1. Preheat a nonstick pan over medium-high heat. Once heated, add a tbsp. of butter until melted and add bologna slices. Fry until the bologna turns dark golden brown, then flip, and fry the other side, for about 2 minutes. Once fried, top each bologna slice with 1 cheese slice and keep over heat until cheese is melted.
2. Spread mayo onto 4 slices of Wonder® bread and mustard on the remaining 4 slices. Place a slice of cheese-covered fried bologna on top of the mayo smeared slice of bread. Then, layer on lettuce, tomato slices and pickles. Repeat to build 4 sandwiches.
3. Slice each sandwich in half and enjoy.