1 lb. beef cubed steaks
1 Tbsp. vegetable oil
1 medium onion, chopped
1/4 tsp. salt
1 1/4 oz. pkg. taco seasoning mix
2 (14 1/2 to 16 oz.) cans diced tomatoes (undrained)
1 1/2 c. uncooked rotini (spiral) pasta
1/2 c. water
1/2 c. shredded Cheddar cheese

Cut beef steaks lengthwise into 1-inch wide strips and then crosswise into 1-inch pieces. In Dutch oven, heat oil over medium-high heat until hot. Add beef and onion. Cook and stir 3 minutes. Season with salt. Stir seasoning mix, tomatoes, pasta and water into beef. Bring to a boil. Reduce heat to low. Cover tightly and simmer 20 minutes or until pasta is tender. Sprinkle cheese before serving.