Million-Dollar Spaghetti

Ingredients (8)

• + 1 (8 ounce) package spaghetti add to pantry
• ✓ 1 pound lean ground beef
• + 1 (16 ounce) jar spaghetti sauce add to pantry
• ✓ ½ cup butter, sliced - divided
• + 1 (8 ounce) container cottage cheese add to pantry
• + 1 (8 ounce) package cream cheese, softened add to pantry
• + ¼ cup sour cream add to pantry
• + 1 (8 ounce) package shredded sharp Cheddar cheese add to pantry