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Delicious and healthy vegetarian casseroles that even meat-eaters will love. These simple vegetarian casserole recipes are perfect if you’re a tried and true vegetarian or simply trying to eat less meat.
Few things are easier or tastier than a good casserole. Casseroles make an easy meal prep item to have on hand during those busy weeks and they freeze like a dream! Common vegetarian ingredients like broccoli, mushrooms, kale, macaroni noodles and proteins like cheese and tofu can be easily transformed into hearty and filling weeknight meals. I’ve compiled some of my favorite vegetarian casserole recipes below, many of which are also vegan, dairy-free and easily made gluten-free with a minor substitute. I hope you enjoy this collection of true comfort food!
❓What is a casserole?
A casserole is simply a dish made of a mixture of a variety of ingredients that are combined, then slowly cooked in an oven.
❓Should you freeze a casserole before or after you cook it?
For best results, freeze a casserole prior to baking to maintain the best textures. However, if you’ve already cooked a casserole, you most definitely can freeze it and maintain the leftovers for longer.
❓How do you freeze casseroles?
Line a freezer-safe casserole dish with parchment paper or aluminum foil, assemble your casserole ingredients over the lining, then pop the container into the freezer until set. Remove the container from the freezer then lift the solid casserole and place it into a freezer-safe container with an airtight lid.
❓How do you cook a frozen casserole?
Remove a frozen casserole from the oven and allow to thaw at room temperature for a few hours before cooking according to recipe instructions.
🥘 25 Vegetarian Casseroles
Baked Zucchini Casserole – Recipes by Peas and Crayons
This cheesy baked Zucchini Casserole is out of this world amazing! This rockin’ vegetarian gratin recipe yields approx. 8 side dish sized servings.
This super comforting Butternut Squash Casserole is filled with Mexican spices and some cheesy goodness for one delightful and versatile vegetarian dish certain to please the pickiest of palates! Gluten-free, with a vegan option, too!
Pizza Potatoes Casserole (Vegan, Gluten-Free Allergy-Free) – Strength and Sunshine
This easy recipe for Pizza Potatoes is just 3 main ingredients! This pizza potato casserole is vegan, gluten-free, allergy-free, & baked right in a skillet!
The Best Sweet Potato Casserole Recipe – Little Sunny Kitchen
A traditional sweet potato casserole with a smooth, creamy filling, and a pecan and brown sugar streusel topping is perfect for a classic thanksgiving meal.
Instant Pot Frittata Breakfast Casserole – Peas and Crayons
Instant Pot Frittata Breakfast Casserole is crazy delicious and loaded with healthy veggies. This tasty casserole is easy to make and an excellent make-ahead option as well. I kept things vegetarian with bell peppers, onion, spinach, and cheese but it can easily be made with sausage or bacon if you’…
Lemon Chickpea and Rice Casserole (Vegan, Gluten-Free, Allergy-Free) – Strength and Sunshine
A super easy dump-and-bake meal for the family! This Lemon Chickpea and Rice Casserole is a healthy, hearty, vegan, gluten-free, & allergy-free dinner idea!
Add some Mexican flavor to your breakfast with this veggie-packed, gluten-free and easy to make savory and vegetarian Mexican Breakfast Casserole. Ready in less than an hour and can be made ahead.
Roasted Veggie Enchilada Casserole – Cookie + Kate
This roasted veggie enchilada casserole recipe is a hearty, vegetable-packed dinner loaded with fresh Mexican flavors! It’s a great gluten-free main dish.
Creamy Cauliflower and Brussels Sprout Casserole – Peas and Crayons
Cozy up with this delicious Creamy Cauliflower and Brussels Sprout Casserole! It makes a perfect side dish for Thanksgiving and holiday dinners galore.
A mouth-watering vegetarian take on Shepherd’s Pie (Cottage Pie). This cozy dish has a saucy layer of vegan ground and veggies, piled high with silky smooth mashed potatoes. Make this cozy dish for your family or friends – it’s always a crowd pleaser!
This Pumpkin Vegetable Casserole is a great way to put a veggie-filled dish on the table… it’s so tasty that no one will even realize how healthy it is!
25 Best Vegetarian Casserole Recipes: Butternut Squash Casserole + More!
Delicious and healthy vegetarian casseroles that even meat-eaters will love. These simple vegetarian casserole recipes are perfect if you’re a tried and true vegetarian or simply trying to eat less meat.
Prep cubed butternut squash by boiling or steaming until tender. Place cooked squash into a blender or food processor, then blend until you have a smooth puree. Pour into a bowl and set aside.
Preheat oven to 375°F (190°C).
In a skillet over medium heat add garlic, onion and pepper. Saute for 10 minutes, stirring frequently.
Add cayenne and black pepper. Saute for 2 minutes longer.
Add saute mixture to the pureed butternut squash.
Add yogurt, cheese and remaining spices. Mix until well combined.
Kristen is a writer, photographer, recipe developer, and certified functional nutrition expert. She is also the author of Fermented Hot Sauce Cookbook, Vegetarian Family Cookbook, and Hot Sauce Cookbook for Beginners. Her work has been featured in various print and online publications including Elle, NBC, Chicago Sun-Times, Martha Stewart, MSN, New York Daily News, Healthline, and many more. Kristen is also a syndicated writer for The Associated Press.
What an amazing list! I wanted to try to pick a favorite to start with, but there are so many that look delicious! The jalapeno popper casserole is up there, and so many others that will be right after!
Wow my family loves casseroles and all of these vegetarian casserole recipes look so great. I’ll be bookmarking this to come back to the next time we make a casserole. Thank you!
These all look so delicious, I don’t know which one to try first! But that Instant Pot Frittata Breakfast Casserole is sticking out to me!
There are so many I want to try! The Jiffy Corn Casserole is one of our faves! Can’t wait to try them all!
This has given me so many great dinner ideas! I can’t wait to try some of these casseroles!
What an amazing list! I wanted to try to pick a favorite to start with, but there are so many that look delicious! The jalapeno popper casserole is up there, and so many others that will be right after!
Wow my family loves casseroles and all of these vegetarian casserole recipes look so great. I’ll be bookmarking this to come back to the next time we make a casserole. Thank you!
I’m so happy to hear! Thank you. 🙂