Preheat oven to 350 degrees.
Add 1 tablespoon olive oil to pan, turn to medium-high heat. Once pan is hot, add 1½ cups cabbage and 1 cup cauliflower . Sauté on medium-high for 5 to 7 minutes until cauliflower gets a little golden.
1 tablespoon olive oil, 1½ cups cabbage, 1 cup cauliflower
Add 2.4 ounces tuna , 1 tablespoon butter, and 1 tablespoon heavy whipping cream . Cook on low for 2-3 mins.
2.4 ounces tuna, 1 tablespoon butter, 1 tablespoon heavy whipping cream
Put mixture into a small casserole dish, top with 1 ounce mozzarella cheese and bake in oven for 15-20 mins.
1 ounce mozzarella cheese
Garnish with 2 tablespoons Parmesan cheese for extra cheesiness.
2 tablespoons Parmesan cheese