This simple appetizer is so flavorful it's hard to believe there are just four ingredients.
Cook tortellini according to package directions. Place chopped tomato in a large colander; drain pasta over tomato. Transfer pasta mixture to a medium mixing bowl. Add pesto and salami; toss gently until pasta is coated with pesto. Serve warm on individual plates lined with a few pieces of thinly sliced tomato or in a bowl for a buffet. Makes 12 to 16 appetizer servings.