Sunday Baked Vegetable Casserole

Name: Sunday Baked Vegetable Casserole
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Yield: 6 servings
Ingredients: 2 medium potatoes, thinly sliced; 1 medium zucchini, thinly sliced; 1 bell pepper, chopped; 1 cup broccoli florets; 1 onion, diced; 2 cups spinach, roughly chopped; 1 cup ricotta cheese; 1 cup shredded mozzarella cheese; 1/2 cup grated Parmesan cheese; 2 cloves garlic, minced; 1 teaspoon Italian seasoning; Salt and pepper to taste; Olive oil for drizzling

Highlighted under: Baking & Desserts

I love whipping up a delicious Sunday Baked Vegetable Casserole when the weekend rolls around. This dish is a colorful, comforting celebration of vegetables that brings the family together. Packed with seasonal produce and creamy goodness, it’s my go-to recipe when I want to make something special yet easy. I often experiment with whatever vegetables I have on hand, and the result is always a delightful surprise. This casserole not only fills the kitchen with enticing aromas but also makes my Sundays feel like a cozy gathering around the table.

Created by

Harper Collins

Last updated on 2026-01-13T18:52:14.499Z

During one of my recent Sunday meal preps, I decided to create a baked vegetable casserole that would not only be nutritious but also delightfully flavorful. By roasting the vegetables beforehand, I found that their natural sweetness really shines through, making the whole dish incredibly satisfying. I love that it can be served hot or at room temperature, perfect for leftovers throughout the week.

The trick lies in layering the veggies strategically. I like starting with a base of hearty vegetables like potatoes or carrots, then adding delicate ones such as zucchini and bell peppers. This layering not only enhances the flavors but also creates a beautiful presentation that impresses everyone at the table.

        Why You'll Love This Recipe
        A medley of seasonal vegetables packed with nutrients
Creamy texture that's utterly satisfying
Perfect as a main dish or a side for family gatherings

      

Unlocking Flavor with Fresh Ingredients

The key to a vibrant Sunday Baked Vegetable Casserole lies in the freshness of the ingredients. The use of seasonal vegetables not only enhances the flavor but also maintains their nutritional value. For example, using young, tender zucchini adds a slight sweetness that balances the heartiness of potatoes. If you're short on time, pre-washed and pre-cut vegetables can save you prep time without compromising the dish's flavor.

Always aim for a variety of colors and textures. Adding vegetables like bell peppers and broccoli provides a satisfying crunch, while the creamy ricotta and mozzarella blend beautifully to create a luscious overall texture. Remember that some vegetables, like spinach, release water during cooking, which contributes to the sauce’s creaminess. If you’d like to keep the casserole drier, consider using slightly less spinach or squeezing out excess moisture beforehand.

Layering for Optimal Distribution

When layering the casserole, ensure even distribution for a balanced bite every time. Start with a good base of vegetables so that the cheese has a solid foundation to cling to. This method not only helps with the aesthetics but also with the cooking process, allowing all layers to meld harmoniously. Spreading the ricotta evenly ensures every forkful of the casserole carries that creamy goodness.

If you want to experiment with flavors, consider mixing in fresh herbs, like basil or thyme, between layers for an aromatic lift. These herbs can elevate the dish beyond expectations. Pay attention to the layering technique: alternating between vegetables and cheeses helps prevent the top layer from becoming too dry, and allows the flavors to infuse throughout the casserole.

Ingredients

Gather the following ingredients to start your delicious casserole:

Ingredients

2 medium potatoes, thinly sliced
1 medium zucchini, thinly sliced
1 bell pepper, chopped
1 cup broccoli florets
1 onion, diced
2 cups spinach, roughly chopped
1 cup ricotta cheese
1 cup shredded mozzarella cheese
1/2 cup grated Parmesan cheese
2 cloves garlic, minced
1 teaspoon Italian seasoning
Salt and pepper to taste
Olive oil for drizzling

Once you have everything ready, you are all set to create this delicious casserole!

Instructions

Let’s get started on this hearty casserole:

Preheat the Oven

Preheat your oven to 375°F (190°C).

Prepare the Vegetables

In a large bowl, combine the sliced potatoes, zucchini, bell pepper, broccoli, onion, and spinach. Drizzle with olive oil, sprinkle with garlic, Italian seasoning, salt, and pepper. Toss well to coat.

Layer the Casserole

In a greased baking dish, layer half of the vegetable mixture on the bottom. Spread half of the ricotta cheese over this layer, followed by half of the mozzarella cheese. Repeat the process with the remaining vegetables and cheeses.

Add Parmesan and Bake

Finish with a sprinkle of Parmesan cheese on top. Cover the dish with foil and bake for 30 minutes. Then remove the foil and bake for an additional 10 minutes, or until the top is golden and bubbly.

Serve and Enjoy

Let the casserole cool for a few minutes before serving. Enjoy it hot or at room temperature!

This casserole can be enjoyed fresh or stored in the fridge for easy reheating throughout the week.

Pro Tips

For a gluten-free option, ensure that all cheese and seasonings are certified gluten-free. Feel free to substitute any vegetables based on your preference or what you have available.

Storage and Make-Ahead Tips

This casserole is fantastic for meal prep! You can assemble it a day in advance, cover it tightly with plastic wrap, and store it in the refrigerator. When ready to bake, simply remove the wrap, allow it to sit at room temperature for about 30 minutes, then bake as instructed. This resting time helps to ensure even cooking and prevents the casserole from being too cold in the center.

If you're considering leftovers, the casserole can be stored covered in the fridge for up to 3 days. Reheat individual portions in the microwave for about 2–3 minutes, or in the oven at 350°F (175°C) for about 15 minutes until warmed through. For freezing, cool completely, then portion and wrap tightly. It can stay in the freezer for up to 3 months. To reheat from frozen, bake directly from the freezer at 375°F (190°C) for about 45-50 minutes, or until heated through and bubbling.

Variations and Substitutions

Feel free to customize this casserole to suit your taste or dietary needs. For a gluten-free version, there’s no need for pasta; the assortment of vegetables will provide plenty of substance. If you're looking for something heartier, consider adding cooked quinoa or brown rice between layers for extra fiber and a nutty taste.

For those who prefer a vegan option, substitute the cheeses with plant-based alternatives like cashew cheese or tofu ricotta. Nutritional yeast can also be sprinkled on top to create a cheesy flavor without the dairy. Keep in mind that cooking times may slightly vary depending on your choice of ingredients, so keep an eye on your casserole as it bakes.

Questions About Recipes

→ Can I use frozen vegetables for this casserole?

Yes, frozen vegetables work, but they should be thawed and drained well before use to prevent the casserole from becoming too watery.

→ How long will leftovers keep in the fridge?

Leftovers can be stored in an airtight container in the fridge for up to 3 days.

→ Can I make this casserole ahead of time?

Absolutely! You can assemble the casserole a day in advance and refrigerate it before baking.

→ What can I serve with this casserole?

It pairs nicely with a simple side salad or crusty bread for a complete meal.