Stuffed Shells(With Spinach-Ricotta Filling)  
["1 box large pasta shells", "1 lb. fresh spinach", "1 Tbsp. chopped onion", "1 Tbsp. butter", "1 beaten egg", "2/3 c. Ricotta cheese", "1/2 c. grated Parmesan cheese", "1/8 tsp. ground nutmeg", "your favorite red sauce (about 4 c.)"]
["Cook shells as directed.", "Drain and rinse."]
["pasta shells", "fresh spinach", "onion", "butter", "egg", "Ricotta cheese", "Parmesan cheese", "ground nutmeg", "your favorite red sauce"]