In a large skillet, cook and stir beef and pepper over medium heat until meat is no longer pink; drain. Stir in the sauce mix, tomato paste and water; bring to a boil. Reduce heat; simmer for 7-10 minutes or until thickened, stirring occasionally.
Separate biscuits; press onto the bottom and up the sides of a greased 9-in. deep-dish pie plate to form a crust. Sprinkle with 1/4 cup Parmesan cheese; fill with meat mixture.
Sprinkle mozzarella cheese and remaining Parmesan cheese over top. Bake at 400° for 15-18 minutes or until crust is golden brown and cheese is melted.