Ingredients: Butternut Squash Peeled & Cut. Water 1/4 cup Margarine 1 Tbs Skim milk 1/4 cup Parmesan cheese 1/4 cup grated Method : Transfer squash cubes to a microwave casserole. Add water Microwave, covered, on high for 10 to 12 minutes or until very tender. Add butter, milk and cheese. Season with salt and pepper. Blend with a hand mixer until smooth and creamy.