Spinach Maria

1 . Stage

Preheat oven to 350°.

2 . Stage

In a large saucepan over medium heat, melt 1 tablespoon butter. Add onion and cook until softened and lightly golden, 4 to 5 minutes.

3 . Stage

Add milk, garlic powder, red pepper flakes and mustard powder to saucepan. Bring the mixture to a boil, stirring regularly. As soon as it starts to boil, reduce heat to simmer, leaving it to thicken.

4 . Stage

Melt remaining 5 tablespoons butter in a smaller saucepan, then sprinkle in flour and stir to form a paste, cooking over low heat for 2 to 3 minutes. Add mixture to the large saucepan and stir to combine.

5 . Stage

Reduce heat on the large saucepan to medium, then gradually add Velveeta and cheddar, stirring regularly so it melts, creating a thick sauce. Add in 1/2 cup Monterey Jack cheese. Once all of the cheese has melted, remove saucepan from heat.

6 . Stage

Drain any excess water from the thawed spinach. Add it to the cheese sauce, mixing to combine. Pour the mixture into a large casserole dish and top with remaining Monterey Jack cheese. Cook in the oven for 15 to 17 minutes, or until cheese has melted and mixture is bubbling slightly.