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    Home » Recipe Roundups

    22 Vegetarian Casseroles That Are Perfect for Busy Weeknights

    By Emmeline Kemperyd on June 16, 2025, updated May 5, 2025 - Leave a Comment

    Vegetarian casseroles are a fantastic solution for busy weeknights, offering a hearty meal that can be prepared in advance and enjoyed by the whole family. These dishes are not only filling but also packed with nutritious ingredients, making them a great choice for anyone looking to eat more plant-based meals. From creamy pasta bakes to spicy bean casseroles, there’s a variety of options to suit every palate. Some of these recipes contain cheeses that might not be vegetarian. To make sure it's entirely vegetarian, make sure to use a cheese that does not contain animal rennet.

    Baked Vegan Pasta

    Vegan pasta bake.
    Photo credit: Plant Based Folk.

    This creamy vegan pasta bake is simple to prepare and loaded with veggies. It's delicious whether served hot or cold!

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    Gorgonzola Tortellini Casserole

    Gorgonzola tortellini casserole.
    Photo credit: Emmeline Kemperyd.

    This tortellini casserole is perfect for cheese and pasta fans. With a mix of two cheeses, a bit of tang from Gorgonzola, and a nice crunch from walnuts, it comes together in under 40 minutes.

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    Cheesy No-Boil Lasagna

    Cheesy No-Boil Lasagna.
    Photo Credit: Midwest Foodie.

    This No-Boil Lasagna is super quick to prepare, taking only 10 minutes. You can skip the step of boiling the noodles before baking, making it an easy option for dinner.

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    Stuffed Poblanos Casserole

    Stuffed Poblanos Casserole.
    Photo Credit: Healing Tomato.

    This stuffed poblanos casserole with lentils and orzo is a great vegan comfort food that everyone will enjoy. Just mix everything in a casserole dish and let the oven handle the cooking.

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    Vegetable Tian

    Vegetable Tian.
    Photo Credit: The Dizzy Cook.

    Vegetable Tian is a colorful mix of fresh summer vegetables and herbs baked together in a dish. With layers of heirloom tomatoes, zucchini, summer squash, and eggplant topped with crispy fried basil, this is a simple and tasty vegan side.

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    Leftover Boiled Potato Casserole

    Leftover boiled potato casserole.
    Photo credit: alwaysusebutter.com.

    Leftover boiled potatoes can be transformed into a delicious casserole. This dish is creamy, cheesy, and perfect for a quick meal.

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    Gorgonzola Mac and Cheese

    Gorgonzola mac and cheese.
    Photo credit: Emmeline Kemperyd.

    This cheesy mac and cheese is made in just one dish, so there's no need to pre-cook anything. With mozzarella and gorgonzola, it’s a simple and comforting meal that everyone will love.

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    Dump-and-Bake Mac & Cheese

    Mac and cheese.
    Photo credit: always use butter.

    Baked Mac and Cheese is simple to prepare, taking just 10 minutes to get ready and 45 minutes in the oven. With a mix of Cheddar and Gruyere, this dish is loaded with cheesy goodness and flavor.

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    Vegetarian Enchilada Casserole

    Vegetarian Enchilada Casserole.
    Photo Credit: Urban Farmie.

    This vegetarian enchilada casserole features layers of soft tortillas, homemade enchilada sauce, and a tasty mix of vegetables and black beans. In about an hour, you can whip up a simple and satisfying dinner that everyone enjoys, topped with melted cheddar and fresh avocado and cilantro.

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    Cheesy Broccoli Cauliflower Casserole

    Cheesy Broccoli Cauliflower Casserole.
    Photo Credit: The Fresh Cooky.

    This Cheesy Broccoli Cauliflower Casserole is a simple dish that can brighten up any meal or holiday gathering. It only takes 15 minutes to prepare and can be easily modified to fit low-carb, dairy-free, or gluten-free diets.

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    Eggplant Polenta Casserole

    Eggplant Polenta Casserole.
    Photo Credit: Dizzy Busy & Hungry.

    This Eggplant Polenta Casserole is a hearty vegetarian dish that swaps out traditional lasagna noodles for polenta. Packed with eggplant and mushrooms, it’s a delicious and healthy option for dinner.

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    No-Boil Pasta Bake

    No-Boil Pasta Bake.
    Photo Credit: Midwest Foodie.

    This vegetarian No-Boil Pasta Bake is simple to prepare and comes together in just a few minutes. It uses common ingredients like store-bought spaghetti sauce, dried spices, boxed noodles, and lots of mozzarella and Parmesan cheese.

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    Italian Frittata with Zucchini and Tomato

    Italian Frittata with Zucchini and Tomato.
    Photo Credit: Dana's Table.

    This baked frittata is packed with zucchini, tomatoes, fresh basil, parmesan, and fluffy eggs. It's simple to prepare and perfect for serving a group at your next brunch.

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    Vegan Noodle Kugel

    Vegan Noodle Kugel.
    Photo Credit: Cinnamon Snail.

    This vegan noodle kugel is a deliciously sweet and creamy dish that's baked until golden. With soft noodles and a sprinkle of cinnamon-sugar on top, it's perfect for holidays, brunch, or just when you want something warm and comforting.

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    No-Boil Ravioli Casserole

    This cheesy ravioli casserole is one of the simplest dishes you can make. With just four simple ingredients and store-bought shortcuts, you can prep this dish in 5 minutes, and eat in under 40!
    Photo credit: Emmeline Kemperyd.

    This dish is super easy to prepare. With just four ingredients and some ready-made items, you can have it ready in 5 minutes and on the table in under 40.

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    Green Rice Casserole

    Green Rice Casserole.
    Photo Credit: Urban Farmie.

    This green rice casserole is a tasty one-pot meal that everyone in the family will enjoy. It's a quick and healthy dish that comes together in just 35 minutes, making it perfect for using up leftover rice.

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    Potato and Leek Quiche

    Potato and Leek Quiche.
    Photo Credit: The Peasant's Daughter.

    This vegetarian leek and potato quiche is both filling and classy. It's a great option for a satisfying meal without any meat.

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    Mediterranean Lasagna

    Mediterranean Lasagna.
    Photo Credit: Midwest Foodie.

    This Mediterranean Lasagna is packed with creamy feta cheese, ricotta, and mozzarella, along with artichoke hearts, sun-dried tomatoes, zucchini, garlic, and herbs. It's a delicious and satisfying dish that's perfect for a cozy meal.

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    Potato Cauliflower Bake

    Potato Cauliflower Bake
    Photo credit: Lavender and Macarons.

    Drenched in a silky white sauce, sprinkled with Gruyere, and baked until perfection, this Potato And Cauliflower Gratin is the best side dish for any occasion.

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    Quinoa Mushroom Spinach Casserole

    Quinoa Mushroom Spinach Casserole.
    Photo Credit: Mommy Evolution.

    This Mushroom Spinach Casserole gives a fresh take on a classic dish by using quinoa, which is both nutritious and filling. It's loaded with protein and fiber, making it a great option for a meatless meal.

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    French Fry Casserole

    Leftover french fries casserole topped with sour cream.
    Photo credit: always use butter.

    Leftover french fries can be transformed into a tasty casserole that's cheesy and a bit spicy. It's simple to prepare and works well as a side dish for chicken, beef, or any other protein.

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    Ricotta Stuffed Shells with Spinach

    Ricotta Stuffed Shells with Spinach.
    Photo Credit: Midwest Foodie.

    Ricotta stuffed shells are a great option for a weeknight dinner and can be ready in just 15 minutes. The best part is you can stuff the pasta without boiling it first, making it super easy to prepare.

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      22 Crockpot Chicken Dinners We Crave Every Week
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      22 Easy Summer Dinners Even Your Kids Will Eat

    About Emmeline Kemperyd

    Emmeline Kemperyd is a writer, food blogger, recipe creator and food photographer and the founder of alwaysusebutter.com. She has 20+ years experience creating and simplifying recipes so they taste good, and are quick, easy, and approachable. She is a regular contributor to MSN and her work has been featured by The Guardian, Well+Good, Vulture, SheKnows, Good Men Project, and The Feed Feed, among others.

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    Hi, I'm Emmeline! I love tasty food, but I'm always in a hurry. And I have the quick and easy recipes to prove it!

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