Add seasonings to taste. Season with salt, pepper, garlic powder, onion powder, red pepper flakes and Italian seasoning.
Brown the sausage in a skillet, seasoning as it cooks. Drain any excess grease.
Layer ravioli in a baking dish while the sausage is cooking.
Add the cooked sausage over the ravioli, then top with spinach.
Pour vodka sauce over the top, making sure everything is fully covered.
Sprinkle mozzarella evenly over the sauce, then dollop pesto on top.
Bake at 400 degrees for 25–30 minutes. Broil on low for a few minutes if desired to crisp the mozzarella.
