French Beef Au Gratin
["1/2 c. margarine", "4 c. thinly sliced Vidalia or white onions", "1 lb. beef tenderloin, cut in 1/2-inch cubes", "3 Tbsp. flour", "1 Tbsp. brown sugar", "1 tsp. cumin", "1 tsp. salt", "1/2 tsp. pepper", "1 qt. beef broth", "2 c. cooked fettuccine", "1 c. (4 oz.) shredded Mozzarella", "1/2 c. grated Parmesan"]
["Melt margarine and saute onions 15 to 20 minutes.", "Remove onions from pan and brown meat well.", "Return onions and any juice to pan.", "In small bowl, mix flour, sugar, cumin, salt and pepper. Add to pan; stir 1 minute until bubbly.", "Gradually add broth, stirring to scrape drippings from pan.", "Simmer 10 minutes.", "Heat broiler.", "Place 1/2 cup of fettuccine in each of four 16-ounce bowls.", "Divide beef mixture over pasta.", "In a bowl, mix cheeses together; sprinkle evenly over beef.", "Broil about 5 minutes until cheese is melted and lightly browned."]
["margarine", "beef tenderloin", "flour", "brown sugar", "cumin", "salt", "pepper", "beef broth", "Mozzarella", "Parmesan"]