Tuna Mornay is comfort food on a shoestring budget. This meal is a quick, easy, budget-friendly, and the perfect mid-week meal to thaw you out on a cold winter day!
Preheat oven to 350°F
In a large pot of boiling salted water, cook the macaroni noodles to al dente and drain, set aside.
While the noodles are cooking, heat olive oil in a skillet or frying pan. Once hot, add onion and saute until translucent and fragrant, set aside.
In a medium pot over medium heat melt butter, add flour, salt, and pepper and whisk constantly for one minute.
Slowly whisk in the milk and stir constantly.
When sauce starts to boil, lower the heat to simmer and whisk until thickened.
Remove from heat and add 1 cup parmesan cheese (reserve remaining for topping) and 1 cup cheddar cheese, stir to combine.
In a large mixing bowl, combine tuna, corn, creamed corn, sauteed onions, and noodles. Mix until well combined. Add the cheese mixture and stir until fully incorporated.
Pour into baking dish, top with remaining parmesan cheese.
Bake 20-25 minutes or until cheese topping turns golden brown.