Prosciutto Tortellini

1 package (19 oz) frozen cheese tortellini
1 tbsp all purpose flour
1 cup half and half cream
1/2 c shredded mozz cheese
1/2 c shredded parm cheese
10 thin slices prosciutto, chopped
1 package frozen peas
1/4 tsp white pepper

Cook tortellini to package directions. Meanwhile, in a large skillet, combine flour and cream until smooth; stir in cheeses. Bring to a boil; cook and stir for 2 mins or until thickened. Reduce heat. Drain tortellini; add to the cheese sauce. Stir in the prosciutto, peas and pepper. Cook for 5 mins or until heated through.