Preheat oven to 425 degrees. Line a baking sheet with aluminum foil.
In a skillet, cook sausage till done, drain off grease and wipe out pan. OR, you can grill the sausages till they are cooked through.
In skillet, add the butter and let heat on medium heat. Saute the bell peppers and onions until they are softened, about 4 minutes. Add the eggs and scrambled them until cooked through. Remove from heat.
Wrap the tortilla shells in a paper towel and place in microwave for about 35 seconds, just enough time to warm them so they are pliable.
Layer a bit of the cheese down the middle of each tortilla, add about two tablespoons of scrambled eggs, and a sausage link. Roll up tortilla shell, place seam side down on baking sheet.
Spray the tops of the shells lightly with non-stick spray - this will help them crisp up and brown.
Bake for 10 - 15 minutes or until crisp and brown. Serve with salsa if desired.