Tuna Noodle Casserole

1 can cream of mushroom soup
1 1/4 cups milk
3 cups hot cooked rotini pasta
1 (12.5 ounce) can tuna, drained and flaked
1 (2.8 ounce) can French fried onions, divided
1 (10 ounce) package frozen peas and carrots
1/2 cup shredded Cheddar cheese

In 2-quart microwave-safe dish, mix soup and milk. Stir in pasta, tuna, 2/3 cup French fried onions, vegetables and cheese. Cover; microwave 10 minutes or until hot, stirring once. Top with remaining 2/3 cup onions. Microwave 1 minute.