Tuna skillet caserole

1 1/2 cups cooked pasta, 1 cup green garbanzo beans, 1/2 diced onion, 1 cup mustard greens, 2 TBSP nutritional yeast, 3/4 cup coconut milk, 1 can solid white tuna (dolphin safe) drained and 1/2 package Riego Foods cheese sauce - white cheddar mix.