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5 Healthy Casserole Recipes for Easy Meal Prep

📅 August 16, 2026 🕒 4 min read

1. Kale & Butternut Squash Quinoa Bake

Ingredients

  • 1 cup cooked quinoa
  • 2 cups peeled, cubed butternut squash
  • 2 cups chopped kale
  • 1 small yellow onion, diced
  • 2 garlic cloves, minced
  • 1 tablespoon olive oil
  • ¼ teaspoon black pepper
  • ½ teaspoon salt
  • ½ teaspoon smoked paprika
  • ½ cup shredded mozzarella cheese
  • ¼ cup vegetable broth

Instructions

  1. Preheat the oven to 375°F. Lightly grease a medium baking dish.
  2. Toss the butternut squash with olive oil, salt, black pepper, and smoked paprika.
  3. Spread the squash on a baking sheet and roast for about 20 minutes, until tender.
  4. Meanwhile, heat a skillet over medium heat. Add the onion and cook for 2–3 minutes.
  5. Add the garlic and kale. Cook for another 2–3 minutes, until the kale starts to soften.
  6. Add the cooked quinoa, roasted squash, kale mixture, and vegetable broth to a large bowl. Stir gently.
  7. Transfer everything to the baking dish and sprinkle the mozzarella over the top.
  8. Bake for 15–20 minutes, until the cheese is melted and lightly golden.
  9. Let it cool for a few minutes before serving.

2. Lentil & Vegetable Casserole

Ingredients

  • 1½ cups cooked green or brown lentils
  • 1 medium carrot, diced
  • 1 medium zucchini, diced
  • 1 bell pepper, chopped
  • 1 small yellow onion, diced
  • 2 garlic cloves, minced
  • 1 cup diced tomatoes
  • 1 tablespoon olive oil
  • ½ teaspoon ground cumin
  • ½ teaspoon paprika
  • ¼ teaspoon black pepper
  • ½ teaspoon salt
  • ¼ cup vegetable broth
  • ½ cup shredded cheddar or mozzarella

Instructions

  1. Preheat the oven to 375°F and lightly grease a baking dish.
  2. Heat the olive oil in a large skillet over medium heat.
  3. Add the onion and cook for about 3 minutes. Stir in the garlic.
  4. Add the carrot, zucchini, and bell pepper. Cook for 5–6 minutes, stirring occasionally.
  5. Add the diced tomatoes, cumin, paprika, salt, and pepper. Cook for another 5 minutes.
  6. Stir in the cooked lentils and vegetable broth.
  7. Transfer the mixture to the prepared baking dish.
  8. Sprinkle the shredded cheese evenly over the top.
  9. Bake for 20–25 minutes, until hot and bubbly.
  10. Let it sit for 5 minutes before serving.

3. Zucchini & Mushroom Bake

Ingredients

  • 2 medium zucchini, sliced
  • 2 cups sliced mushrooms
  • 1 small yellow onion, sliced
  • 2 garlic cloves, minced
  • 1 tablespoon olive oil
  • ½ teaspoon Italian seasoning
  • ½ teaspoon salt
  • ¼ teaspoon black pepper
  • ½ cup shredded mozzarella
  • 2 tablespoons breadcrumbs

Instructions

  1. Preheat the oven to 375°F. Grease a baking dish with a little olive oil.
  2. Heat the olive oil in a large skillet over medium heat.
  3. Add the onion and cook for about 2 minutes.
  4. Add the mushrooms and cook for 4–5 minutes, until they begin to soften.
  5. Stir in the garlic and cook for about 30 seconds.
  6. Add the sliced zucchini, Italian seasoning, salt, and black pepper.
  7. Cook for another 3–4 minutes. The zucchini should still have some texture.
  8. Transfer the vegetables to the baking dish.
  9. Sprinkle mozzarella and breadcrumbs over the top.
  10. Bake for about 20 minutes, until the cheese is melted and the top is lightly golden.

4. Cauliflower & Chickpea Casserole

Ingredients

  • 3 cups cauliflower florets
  • 1½ cups cooked chickpeas, drained and rinsed
  • 1 small yellow onion, diced
  • 2 garlic cloves, minced
  • 1 cup diced tomatoes
  • 1 tablespoon olive oil
  • ½ teaspoon ground cumin
  • ½ teaspoon paprika
  • ¼ teaspoon turmeric
  • ½ teaspoon salt
  • ¼ teaspoon black pepper
  • ¼ cup vegetable broth
  • ½ cup shredded mozzarella

Instructions

  1. Preheat the oven to 375°F and grease a baking dish.
  2. Steam the cauliflower for about 5 minutes, until slightly tender. Don’t overcook it.
  3. Heat the olive oil in a skillet over medium heat.
  4. Add the onion and cook for 2–3 minutes. Add the garlic and cook for another 30 seconds.
  5. Stir in the diced tomatoes, cumin, paprika, turmeric, salt, and pepper.
  6. Cook for about 5 minutes, until the tomato mixture thickens slightly.
  7. Add the chickpeas and vegetable broth. Stir well.
  8. Gently fold in the cauliflower.
  9. Transfer everything to the baking dish and sprinkle mozzarella over the top.
  10. Bake for 20–25 minutes, until hot and lightly golden.

5. Whole-Grain Pasta & Spinach Bake

Ingredients

  • 2 cups cooked whole-wheat pasta
  • 2 cups fresh baby spinach
  • 1 cup diced tomatoes
  • 1 small yellow onion, diced
  • 2 garlic cloves, minced
  • ½ cup marinara sauce
  • 1 tablespoon olive oil
  • ½ teaspoon Italian seasoning
  • ½ teaspoon salt
  • ¼ teaspoon black pepper
  • ½ cup shredded mozzarella

Instructions

  1. Preheat the oven to 375°F and lightly grease a baking dish.
  2. Heat the olive oil in a large skillet over medium heat.
  3. Add the onion and cook for 2–3 minutes. Stir in the garlic.
  4. Add the diced tomatoes and marinara sauce.
  5. Season with Italian seasoning, salt, and black pepper. Simmer for about 5 minutes.
  6. Add the spinach and cook for 1–2 minutes, until wilted.
  7. Stir the cooked whole-wheat pasta into the sauce.
  8. Transfer the pasta mixture to the baking dish.
  9. Sprinkle mozzarella evenly over the top.
  10. Bake for 15–20 minutes, until the cheese is melted and the casserole is hot throughout.

For meal prep: Let the casserole cool completely, then divide it into individual containers. Refrigerate for up to 4 days and reheat when ready to eat.

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