Cook the pasta according to package directions – BUT cut the cooking time in HALF! (it will finish cooking in the oven)

Preheat oven to 375°F

In a large skillet over medium heat, add butter, olive oil, onions, and garlic – saute for 5 minutes, or until the onions are translucent and the butter is fully melted, but not browning.

Add the spinach and cook until it wilts. Add the flour, salt, and spices and stir for 1 minute.

Slowly whisk the milk into the onion and spinach mixture 1/2 cup at a time. When it starts to thicken, add another 1/2 cup until the milk is gone.

Turn the heat to low and stir in 1 cup of pasta sauce. Stir until combined and then stir in the cooked pasta.

Spoon the remaining 1/2 cup sauce on the top of the pasta and then top with cheese.

Bake in the oven for 20 minutes or until bubbly – let sit for 5 minutes after coming out of the oven.