For filling, saute onion, garlic and red pepper in butter in medium skillet until tender, about 5 minutes. Stir in spinach, cheeses and sour cream; remove from heat.

Preheat oven to 375 degrees F. Make hot roll mix according to package directions for pizza, replacing egg and butter with hot water and olive oil. Let dough stand 5 minutes. Divide dough into 8 pieces. Roll each piece into an oval about 5 x 7 inches. Place 1/2 cup cheese filling in center of oval; bring up edges and seal securely. Transfer calzone to a lightly greased baking sheet, placing seal side up to form a "football" shape. Repeat with remaining dough and filling. Set calzones in warm place to rise, covered with towel, 25 minutes. Bake until lightly browned, about 20 minutes.

In a small skillet, heat butter and garlic over low heat until butter is melted and garlic is tender, about 3 minutes. Remove calzones from oven when lightly browned. Brush hot calzones with garlic butter and sprinkle each with 1/2 tablespoon Parmesan cheese. Return to oven until cheese melts, about 2 minutes. Let stand 5 minutes before serving.

*Calzones can be baked and refrigerated up to 2 days in advance. Reheat at 350 degrees F until hot, about 20 minutes.

Recipe Courtesy of The American Dairy Association (I Love Cheese).