Easy Alfredo kids love

2 sticks butter
1/2lb grated Parmesan cheese (i usually buy fresh grated but the green can works too)
1lb. fettuccine noodles
salt
1 box frozen spinach (optional, very optional)
1/2 cup milk

Beat softened (not melted) butter with cheese until creamy.
Cook fettuccine.
Return noodles to warm pot. Toss with 1/2 tea salt, cheese/butter mixture. Add 1/4 cup milk. stir. if needed add the other 1/4 milk. serve with additional cheese. add broccoli or chicken or shrimp whatever you like.