19 Vegetarian Casseroles You'll Want to Make Forever

This one-pan recipe is the casserole version of spanakopita! It's hearty enough to enjoy as a vegetarian lunch or dinner, yet versatile enough to serve alongside just about any protein. To make it extra creamy, top each serving with a dollop of sour cream.

This classic and comforting Mexican-inspired dish is easy to make on a busy weeknight.

The combination of sweet tomatoes and zucchini with melted cheese in this zucchini-tomato casserole tastes like a summer-fresh pizza. It's the perfect easy side dish for any summer meal.

Classic eggplant Parm is filled with cheese, but this vegan eggplant Parmesan combines nondairy mozzarella cheese with nutritional yeast for a dairy-free cheesy substitute that gives you the comfort food factor without animal products. For the breading, use egg replacer, which you can find in natural-foods stores and the special-diet section of large supermarkets.

This Southwestern-inspired one-skillet casserole is stuffed with quinoa and plenty of fresh vegetables. Sharp Cheddar cheese flavors the filling and adds a layer of ooey-gooey melted cheese on top.

Enjoy this Mediterranean-inspired Christmas-morning casserole while you open presents. Breakfast casseroles are perfect for when you have a crowd to feed, and you can make the prep even quicker by tearing the bread into pieces the night before.

Blanching the asparagus before assembling this casserole helps to maintain its vibrant green color. Feel free to skip that step if you're crunched for time, but the vegetables will be more army green.

Think of this vegetarian enchilada casserole as a veggie-packed Mexican-inspired lasagna with corn tortillas standing in for the noodles! If your peppers are mild and you like heat, opt for spicy pico de gallo. This easy vegetarian dinner recipe is sure to become a new family favorite.

Pick your favorite table-worthy baking dish for this healthy French toast recipe--the breakfast casserole goes straight from the oven to the table. Serve with pure maple syrup.

This cheesy eggplant casserole has a light custard with deliciously tender and flavorful summer vegetables and fresh herbs. The cheese makes this easy dish creamy and decadent. Enjoy it for brunch or dinner with a green salad on the side.

As this layered slow-cooker squash casserole recipe cooks, the liquid from the tangy tomatillo salsa and summer squash is absorbed by the quinoa, adding tons of flavor to the final dish.

This healthy casserole is essentially a crustless quiche, brimming with fresh summer vegetables. Bake it up for an elegant summer brunch or a casual backyard barbecue.

The cheesy-seedy crust that tops this healthy cauliflower casserole recipe evokes everything bagels. Serve for the holidays or as a hearty side dish with roast chicken.

You can make these three-ingredient tomato-simmered eggs with things you probably already have on hand in your freezer and pantry. To make these baked eggs more like eggs in purgatory, look for a spicy tomato sauce and don't forget some whole-wheat bread for dipping.

This cheesy baked eggplant Parmesan has no breading, which means it's easier to make than the traditional version. There's no dredging or frying--instead, the eggplant is roasted until tender before being layered in the casserole dish with a tangy homemade tomato sauce, mozzarella and Parmesan cheese. And without breading, this satisfying eggplant Parmesan is also gluten-free!

Thanks to fresh green beans, an easy homemade cream sauce and crispy onion topping, this green bean casserole recipe is healthier and more delicious than traditional recipes that use canned soup, beans and onions. Plus, the slow cooker saves you time cooking at the stove. Make sure to use fresh green beans, as frozen green beans will become mushy.

A summertime favorite--zucchini casserole--gets an Italian spin in this delicious and healthy side dish with tomatoes, mozzarella and basil. You can use zucchini or summer squash in this caprese-style casserole, or a combination of the two. A sprinkling of fresh basil and a drizzle of balsamic vinegar just before serving brightens up the flavors. Serve with grilled or roasted chicken and some quinoa, rice or couscous to soak up the juices from the casserole for a satisfying and easy dinner.

Our version of this enchilada-style chilaquiles casserole is packed with nutritious beans and vegetables. Canned prepared enchilada sauce has great flavor and keeps the prep time quick. It can vary in heat level so find one that suits your taste. If you want to eliminate the heat altogether, try a green enchilada sauce (which is often milder than red) or substitute two 8-ounce cans of plain tomato sauce.

This hash brown and egg dish with sweet green pepper rings is easy to create and perfect for brunch or breakfast.