Brown beef in skillet over medium-high heat. Reduce heat to medium; stir in onions, garlic and green pepper, and cook 3 minutes longer or until onion is softened.

Stir in salsa and cook for 5 minutes or until most of the liquid has evaporated.

Place pizza crust on pizza pan. Remove beef mixture from heat and spoon onto pizza crust.

Sprinkle green pepper and cheese evenly over beef mixture.

Bake in a 450°F (230°C) oven for 20 to 25 minutes or until cheese has melted and pizza is heated through.