Brown sausage in a large skillet until no longer pink; drain. Stir in beans; heat for 3 to 4 minutes. Remove from skillet; keep warm.
Melt butter in a medium skillet over medium heat. Add eggs; cook, stirring constantly, for 3 to 4 minutes or until eggs are of desired consistency.
Fill taco shells with sausage mixture and egg mixture. Top with cheese, tomato, bell pepper and salsa.
Yields: 6 servings.
Preparation time: 20min.