Add the ricotta cheese, yogurt, Parmesan cheese, margarine, and pepper, and toss well to mix
Transfer to a warm platter and serve with a cooked green vegetable
VARIATIONS
Noodles with Mushrooms-Melt the margarine in a heavy 10-inch skillet over moderate heat
Add 1-1/2 cups sliced mushrooms and cook, stirring, for 3 to 5 minutes
Toss with the noodles and the remaining ingredients.