Refrigerated crescent rolls make for a quick crust for these savory appetizers.
Preheat oven to 375 degree F. Unroll crescent roll dough onto an ungreased baking sheet. Pat or roll dough to a 13x9-inch rectangle. Crimp edges of the dough.
In a small bowl combine butter and mustard; stir until smooth. Spread evenly over dough. Top with ham, onion, and sweet pepper. Sprinkle with cheese.
Bake in preheated oven for 18 to 20 minutes or until edges are golden and cheese is melted. Serve warm. Makes 12 servings.
Prepare as directed through step 2. Cover and chill for up to 2 hours. Bake as directed in step 3.