Hearty Minestrone Casserole Recipe for Comforting Family Dinners

If you enjoy my minestrone soup, you’ll love this minestrone casserole. It transforms the same cozy, vegetable-packed flavors into a hearty, cheesy pasta bake — perfect for weeknight dinners.

Ingredients For Minestrone Casserole

• Onions: White or yellow, or swap with shallots or red onion for a milder note.
• Extra veggies: Mushrooms, bell peppers, or a handful of spinach or kale work well.
• Bean swaps: Cannellini, navy, pinto, or chickpeas are fine — just drain and rinse.
• Add protein: Brown 1 pound ground beef or Italian sausage before the vegetables if you want meat.
• Pasta shape: Any short pasta can replace the small shells called for in the recipe.
• Green beans: Frozen or canned (drained) can be used when fresh aren’t available.

How to Make Minestrone Casserole

1. Prep & boil: Preheat the oven to 350°F. Lightly spray a 9 x 13-inch baking dish with nonstick spray and set aside. Cook the pasta in a large pot of salted boiling water until al dente, drain, and set aside. If you like firmer pasta, reduce the cook time slightly because it will finish cooking in the oven.
2. Sauté: Heat a large skillet over medium-high heat with olive oil. Add diced onion, carrots, and celery and cook until the onion is softened and translucent.
3. Add aromatics & zucchini: Stir in minced garlic and sliced zucchini and cook briefly until fragrant.
4. Combine the sauce: Add green beans, drained beans, diced tomatoes (with juices), tomato sauce, tomato paste, Italian seasoning, salt, and pepper. Stir to combine and remove from heat.
5. Mix in pasta: Fold the cooked pasta and grated Parmesan into the vegetable mixture, then transfer everything to the prepared baking dish.
6. Bake: Sprinkle shredded mozzarella over the top, cover with foil, and bake until heated through. Remove the foil and bake until the cheese is melted, golden, and bubbly. Garnish with chopped fresh parsley if desired and serve warm.

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Minestrone Casserole

A comforting casserole that turns classic minestrone into a cheesy pasta bake.

Prep Time: 25 minutes

Cook Time: 40 minutes

Total Time: 1 hour 5 minutes

Servings: 8 servings

Equipment

• 1 9 x 13-inch baking dish

Ingredients 

• 3 cups small shell pasta or other short pasta
• 2 tablespoons olive oil
• 1 cup diced onion about half a large onion
• ½ cup diced carrots about 1 medium carrot
• ½ cup diced celery about 1 large stalk
• 1 tablespoon minced garlic about 3 cloves
• 1 ½-2 cups sliced zucchini about 1 large zucchini, sliced ¼-inch thick
• 1 cup chopped fresh green beans cut into 1-inch pieces
• 1 (15-ounce) can red kidney beans drained and rinsed
• 1 (15-ounce) can navy beans drained and rinsed
• 1 (15-ounce) can diced tomatoes not drained
• 1 (8-ounce) can tomato sauce
• 3 tablespoons tomato paste
• 2 teaspoons Italian seasoning
• 1 teaspoon salt
• ½ teaspoon ground black pepper
• ½ cup grated Parmesan cheese
• 2 cups shredded mozzarella cheese
• chopped fresh parsley optional garnish

Instructions 

• Preheat oven to 350°F. Spray a 9 x 13-inch baking dish with nonstick spray and set aside.
• Bring a large pot of salted water to a rolling boil. Add 3 cups small shell pasta and cook to al dente according to package directions. Drain and set aside. For firmer pasta, cook a few minutes less.
• Heat a large skillet over medium-high heat and add 2 tablespoons olive oil. Sauté 1 cup diced onion, ½ cup diced carrots, and ½ cup diced celery for 2–3 minutes, until the onion is translucent.
• Add 1 tablespoon minced garlic and 1½–2 cups sliced zucchini and cook for 2 minutes.
• Stir in 1 cup chopped green beans, 1 (15-ounce) can red kidney beans (drained), 1 (15-ounce) can navy beans (drained), 1 (15-ounce) can diced tomatoes (not drained), 1 (8-ounce) can tomato sauce, 3 tablespoons tomato paste, 2 teaspoons Italian seasoning, 1 teaspoon salt, and ½ teaspoon ground black pepper. Mix to combine and remove from heat.
• Fold the cooked pasta and ½ cup grated Parmesan into the vegetable mixture, then transfer to the prepared baking dish.
• Top with 2 cups shredded mozzarella and cover with foil. Bake for 25 minutes. Remove foil and bake an additional 15 minutes until the cheese is melted, browned, and bubbling.
• Let cool slightly, garnish with chopped parsley if desired, and serve.

Video

Notes

Storing Leftovers & Make Ahead Instructions

• Fridge: Store leftovers in an airtight container up to 7 days. Reheat covered at 350°F for 20–25 minutes, or microwave in 30-second intervals until heated to 165°F.
• Make Ahead / Freeze: Assemble through the step before baking and cool completely. Cover tightly and refrigerate up to 24 hours or freeze up to 3 months. If refrigerated, add about 15 minutes to bake time; if frozen, add 25–30 minutes. Uncover and bake until bubbly and the center reaches 165°F.

Nutrition

Calories: 428kcal
Carbohydrates: 58g
Protein: 22g
Fat: 13g

Nutrition information is automatically calculated and should be used as an approximation.

Additional Info

Course: Dinner, Main Course

Cuisine: American, Italian

More Hearty Casserole Recipes To Try

If you like this vegetable-packed minestrone casserole, try these other comforting casseroles.

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