A wonderful shrimp and mozzarella pizza that is a little bit healthier than most, but still just as yummy!! You can add a little garlic to the shrimp and onion mixture, or a little garlic powder to the white sauce.
For white sauce,in a small nonstick saucepan, melt butter. Stir in flour,mustard,cayenne and salt until smooth;gradually add milk. Bring to a boil;cook and stir for 2 minutes until thickened. Remove from the heat; set aside.
In a large nonstick skillet coated with non stick cooking spray,cook onion over medium heat for 2 minutes. Add shrimp;cook and stir 2-3 minutes longer. Drain.
Place crust on a pizza pan or bakng sheet;spread with white sauce. Top with shrimp mixture and cheese. Bake at 425 for 8-12 minutes or until shrimp turns pink and cheese is melted.