Spinach Beef Biscuit Bake
["2 (7 1/2 oz.) tubes refrigerated buttermilk biscuits", "1 1/2 lb. ground beef", "1/2 c. finely chopped onion", "2 eggs", "1 (10 oz.) pkg. frozen chopped spinach, thawed and squeezed dry", "1 (4 oz.) can mushroom stems and pieces, drained", "4 oz. crumbled Feta or shredded Monterey Jack cheese", "1/4 c. grated Parmesan cheese", "1 1/2 tsp. garlic powder", "salt and pepper to taste", "1 to 2 Tbsp. butter or margarine, melted"]
["Press and flatten biscuits onto the bottom and up the sides of a greased 11 x 7 x 2-inch baking dish. Set aside. In a skillet over medium heat, cook beef and onion until meat is no longer pink; drain. In a bowl, beat eggs. Add spinach and mushrooms; mix well. Stir in the cheeses, garlic powder, salt, pepper and beef mixture; mix well. Spoon into prepared crust. Drizzle with butter. Bake, uncovered, at 375\u00b0 for 25 to 30 minutes or until crust is lightly browned. Yield: 6 servings."]
["buttermilk", "ground beef", "onion", "eggs", "mushroom stems", "cheese", "Parmesan cheese", "garlic powder", "salt", "butter"]