27 Make-Ahead Vegetarian Casserole Recipes to Enjoy All Year

Vegetarian casserole recipes are the one-dish answer to Meatless Mondays and healthy Thanksgiving meals when you don't have enough time to cook. That's right, no more dissatisfied nights spent eating potato chips in bed — vegetarian casseroles have your back, and they're even better when you can prep them the night before!

Casseroles are hearty, melt-in-your-mouth good, and will earn you brownie points (or yummy broccoli points) from every vegetarian on the block. Here are the vegetarian casserole recipes you need to rock suppertime any day of the week.

Sweet Potato Gratin

This sweet potato gratin with sage and gruyère cheese is ultra indulgent. It's crispy and caramelized on the outside, but soft and luscious once you break the surface. Grab a fork and dig in! (via Brit + Co.)

Roasted Garlic Ratatouille

Don't tell France about this ratatouille. It gets a slight modification from possibly the most American ingredient ever: ranch dressing powder. You can call it sacrilege, but after one bite, you might hear a chorus of angels. (via The Food Charlatan)

Healthy Baked Pesto Rigatoni

The very green pesto in this pasta bake gets its color from a balanced mix of spinach, kale, and basil. (via Pinch of Yum)

Creamy Broccoli Cheddar Casserole with Garlic Butter Pretzels

Carbs and cheese are always a yes from us. Dip into this creamy casserole with homemade pretzel bites! (via Half Baked Harvest)

One-Pan Four Cheese Sun-Dried Tomato and Spinach Pasta Bake

This pasta casserole is a cheese lover's dream. However, the addition of veggies like sun-dried tomatoes and spinach make it adulting at its finest. (via Half Baked Harvest)

Healthy Mushroom Cauliflower Alfredo Pasta Bake

This casserole has an alfredo sauce that binds the ingredients together. It's sure to hit the spot without weighing you down! The secret is using cauliflower instead of cream -- you'll have no regrets. (via Pinch of Yum)

Gruyere White Cheddar and Kale Strata

This cheesy kale casserole can be enjoyed any time of day, even though it's traditionally intended to be a breakfast casserole. (via The Endless Meal)

Sun-Dried Tomato and Feta Quinoa Casserole

This casserole packs a fresh flavor inspired by the Mediterranean. (via The Endless Meal)

Creamy Caprese Quinoa Bake

Swap pasta for quinoa in this casserole for a healthy, protein-filled twist. It's loaded with fragrant basil and sweet grape tomatoes, making this one dish you won't be able to resist. (via Half Baked Harvest)

Creamy Mushroom Pasta Bake

Savory mushrooms keep this pasta bake from tasting too dull. The sauce balances out the earthy fungi flavors for an unforgettable dish. (via Simply Delicious)

Black Bean Enchilada Casserole

Black beans and roasted butternut squash get the enchilada treatment in this casserole. They're tossed with spices, cheese, enchilada sauce, and tortillas, then baked until gooey. (via She Likes Food)

Chile Relleno Casserole

A flawless homage to cheesy stuffed fried chiles, this casserole is everything. Serve it with some tortilla chips if you're craving a crunch. (via Savory Tooth)

Vegan Broccoli and Cheese Casserole

Get the homey flavors of broccoli and cheddar in a casserole that's made with a vegan cheese sauce and topped with crispy chickpeas. (via Fit Foodie Finds)

Easy Baked Ziti

Cream cheese takes the place of ricotta to make this baked ziti extra indulgent. (via The Cookie Rookie)

Vegetarian Sausage Casserole

Veg-heads who miss the taste of meat will fall head over heels for this casserole. Its savory punch comes from red wine, tomatoes, vegetarian Worcestershire sauce, and brown sugar, which create a thick sauce that coats each bite of the meatless sausage. (via The Cook Report)

Three Sisters Casserole with Cornbread

A blend of squash, beans, and corn is topped with hearty cornbread dumplings that soak up every bit of flavor from the filling below. (via Simply Recipes)

Low Carb Cauliflower Casserole

As the name implies, this beauty is made with cauliflower instead of pasta. Think of this as an adult version of macaroni and cheese. (via Life Made Sweeter)

Dump-and-Bake Wagon Wheel Pasta Casserole

Sometimes a simple, Caprese-style pasta bake is all you need to please everyone at dinnertime. (via The Seasoned Mom)

Healthy Mexican Casserole with Roasted Corn and Peppers

This nutritious casserole is inspired by a frozen dinner you can find in any grocery store. No offense to that version, but this one's way better. (via Pinch of Yum)

Eggplant Pasta Casserole

This dish is so great to make ahead for busy winter days. Save tons of the leftovers and heat it up for an effortless lunch or dinner! (via Feel Good Foodie)

Vegetable Casserole

Super simple, yet super flavorful. This casserole is made with frozen veggies and only a handful of kitchen staples! (via Culinary Hill)

Baked Miso Sweet Potato Slices

The umami notes of miso balance out the sweetness of sweet potatoes in this delish recipe! (via Takes Two Eggs)

Ultimate Green Bean Casserole

Thanksgiving or not, this green bean casserole is the ultimate comfort meal. (via Salt & Lavender)

Vegan Zucchini Lasagna

This lasagna is packed with tons of nutritious baked zucchini and has an amazing fix of protein from the tofu-based ricotta filling. (via Munching With Mariyah)

Potatoes Au Gratin

Warm up on those cozy winter nights by preparing this cheesy potato casserole. Perfect for a main course or side dish! (via Cozy Cravings)

Lightened Up Broccoli Casserole

This casserole is a dependable weeknight option because it only takes 1 hour to take. (via Live Eat Learn)

Vegan Sweet Potato Casserole

We can never get enough sweet potato. This casserole is super sweet and delicious, you'll be craving it even after Thanksgiving's over. (via Two Spoons)