Crunchy Ranch Tuna Pasta

Crunchy Ranch Tuna Pasta 1 box Tuna Helper creamy Parmesan 1 cup hot water 1 1/4 cups milk 2 cans (5 oz each) tuna, drained 1/4 cup creamy ranch dressing 1/4 cup sour cream 1 can (2.8 oz) French-fried onions In 10-inch skillet, stir together uncooked pasta and sauce mix (from Tuna Helper box), hot water, milk and tuna. Heat to boiling over high heat, stirring occasionally. Reduce heat. Cover; simmer about 10 minutes, stirring occasionally, until pasta is tender. Stir in dressing and sour cream. Sprinkle with onions.