Nutty, cheesy, and full of the sharp, almost spicy taste of fresh garlic and basil, pesto is a dominant ingredient that pairs particularly well with hearty, neutral ravioli fillings like ... wouldn't ...

You can use any type of ravioli you would like in this casserole, so feel free to experiment. Spinach is a good healthy idea! Substitute the ground beef/sausage with veggie crumbles, Impossible Burger ...