Name: Tomato Soup and Grilled Cheese Casserole Recipe
Prep time: 20 min
Cook time: 40 min
Total time: PT-498120H16M4S
Cuisine: American
Ingredients: 12 (½-inch thick) slices sourdough bread; 1/4 cup butter, softened, divided; 3 ounces cream cheese, softened; 12 slices pre-sliced Cheddar cheese; 2 (10.5 ounce) cans condensed tomato soup (such as Campbell's); 1 cup tomato juice; 2 large eggs; 1 teaspoon Italian seasoning; 1/2 teaspoon garlic powder; 1 Roma tomato, seeded and chopped into ½-inch pieces; 1 cup shredded Italian blend or Cheddar cheese

Jump to Recipe· 4.1 from 48 reviews

If ever there was a dish that wrapped up the cozy, comforting feeling of a chilly day, it’s this Tomato Soup and Grilled Cheese Casserole Recipe. Imagine the iconic duo of creamy tomato soup paired with perfectly melty grilled cheese sandwiches, but all baked together in one warm, bubbly casserole. Each bite offers golden bread cubes oozing with cheese soaking up the rich, tangy tomato broth, creating a dish that’s the ultimate comfort food hug. Whether you’re serving it for family dinner or a crowd-pleasing lunch, this casserole makes all the magic of classic tomato soup and grilled cheese impossible to resist.

Ingredients You'll Need

The image shows all the ingredients neatly placed on a white marbled surface. There are eight slices of light brown bread stacked overlapping on a small wooden board on the left. Next to the bread is a stick of yellow butter and a block of white cream cheese, both sitting on the same board. Two small glass bowls with green herbs and light brown powder are above the board. On the right side, there is a rectangular wooden board with eight slices of orange cheddar cheese stacked evenly. Above this board are two brown eggs and one red tomato. To the far right, there are three glass containers, one filled with thick red sauce, one with smoother lighter red sauce, and one white bowl with shredded white cheese. The arrangement is simple and organized, all on a clean white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

This recipe calls for simple ingredients that come together beautifully to deliver layers of flavor and texture, from the creamy cheese to the perfectly toasted bread and the tangy, seasoned tomato soup base. Each one plays a vital role in making this casserole irresistible.

Sourdough bread: Its sturdy texture holds up well while toasting and baking, adding a slight tang that complements the tomato soup perfectly.
Butter: Softened butter gives the bread a crispy, golden crust with a luscious richness.
Cream cheese: Adds a subtle tang and creamy base that amps up the cheesiness in every bite.
Cheddar cheese slices: Classic melty cheddar provides that unmistakable grilled cheese flavor.
Condensed tomato soup: The star flavor component, creating that nostalgic tomato soup taste.
Tomato juice: Lightens the soup mixture while enhancing the fresh tomato essence.
Eggs: Help bind the soup and create a custardy, satisfying texture.
Italian seasoning: A fragrant blend that adds savory depth and herbs to the soup.
Garlic powder: A touch of warm, mellow garlic flavor enhances the tomato base without overpowering.
Roma tomato: Fresh pieces bring bursts of juiciness and bright color.
Shredded Italian blend cheese: Sprinkled on top, it melts beautifully and adds an extra layer of cheesy goodness.

How to Make Tomato Soup and Grilled Cheese Casserole Recipe

Step 1: Toast the Grilled Cheese Sandwiches

Start by prepping your grilled cheese sandwiches to get that perfect golden crust and melted cheese center. Spread softened butter on one side of six slices of sourdough bread. Place the buttered sides down on a baking sheet, then spread cream cheese evenly over each slice. Layer with two cheddar cheese slices on top, then cover each with another slice of bread. Butter the tops of these sandwiches before baking at 450°F. Bake for 12 to 14 minutes, flipping once, until the cheese is gooey and the bread is beautifully toasted. Allow them to cool, which helps them hold shape for cubing later.

Step 2: Prepare the Tomato Soup Mixture

While your sandwiches cool, whisk together the condensed tomato soup, tomato juice, eggs, Italian seasoning, and garlic powder in a bowl. The eggs will give the soup mixture a silky, custard-like consistency once baked. Stir in the chopped Roma tomato for fresh bursts of flavor and texture.

Step 3: Assemble the Casserole

Cut the toasted grilled cheese sandwiches into 1-inch cubes, perfect for layering. Pour the soup mixture into a greased 9x13-inch baking dish, then evenly scatter the grilled cheese cubes over the top, gently pressing them into the soup. This ensures every bite is soaked with the luscious tomato soup flavor. Finally, sprinkle the shredded Italian blend cheese all over to create a bubbly, golden topping once baked.

Step 4: Bake to Perfection

Lower the oven temperature to 350°F and bake the assembled casserole for 25 to 30 minutes. You’ll know it’s ready when the cheese topping is melted and golden brown, and the casserole is heated through, with the savory tomato soup mixture set around the irresistible grilled cheese cubes.

How to Serve Tomato Soup and Grilled Cheese Casserole Recipe

A white rectangular baking dish filled with a layer of smooth, bright red tomato sauce at the bottom. On top, there are many small, golden-brown toasted bread pieces, each with visible melted yellow cheese inside, arranged unevenly to cover the sauce but not packed tightly. The dish is placed on a white marbled surface and a white cutting board with more small toasted bread pieces is on the left side. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

A sprinkle of freshly chopped basil or parsley adds a vibrant pop of green and a fresh herbal note that brightens this hearty casserole. For a little extra zing, a drizzle of balsamic glaze or a dash of crushed red pepper flakes can elevate the flavors beautifully.

Side Dishes

This casserole stands proudly on its own, but adding a crisp green salad with a light vinaigrette creates a well-rounded meal. Roasted vegetables or a simple coleslaw provide a refreshing crunch contrast, balancing the creamy richness of the casserole.

Creative Ways to Present

Serve this warm casserole right from the baking dish for a cozy family meal or crown individual portions in small ramekins for a charming, personalized touch. Pair with a rustic loaf of crusty bread or garlic knots to soak up every last bit of the tomato soup goodness.

Make Ahead and Storage

Storing Leftovers

You can store any leftover Tomato Soup and Grilled Cheese Casserole Recipe in an airtight container in the refrigerator for up to 3 days. It holds up well, maintaining the flavors and textures, making it perfect for busy weekdays.

Freezing

This casserole freezes wonderfully. After baking and cooling completely, wrap it tightly with plastic wrap and aluminum foil or place portions in freezer-safe containers. It will keep in the freezer for up to 2 months, ready for a comforting meal any time.

Reheating

To reheat, bake the frozen casserole at 350°F covered with foil until warmed through, about 30 to 40 minutes. If reheating refrigerated leftovers, heat in the oven at 350°F for about 20 minutes or microwave individual portions, stirring halfway for even warmth.

FAQs

Can I use a different type of bread for the casserole?

Absolutely! While sourdough offers great texture and flavor, any sturdy bread like whole wheat or white sandwich bread works fine. Just make sure the slices are thick enough to hold up during baking without getting too soggy.

Is this recipe suitable for vegetarians?

Yes, this Tomato Soup and Grilled Cheese Casserole Recipe is vegetarian-friendly as long as you choose cheese made without animal rennet. It’s packed with simple plant-based ingredients plus cheese and eggs.

Can I make this casserole gluten-free?

You can easily customize it for gluten-free diets by swapping the bread for gluten-free bread and ensuring your tomato soup is gluten-free. The rest of the ingredients are naturally gluten-free.

How spicy is the casserole?

This recipe is mild and classic in flavor, but you can add a dash of cayenne pepper or red pepper flakes to the soup mixture if you want a little heat. It’s very flexible to suit your taste.

Can I use homemade tomato soup instead of canned?

Definitely! Using homemade tomato soup can add an extra fresh dimension to your casserole. Just make sure it’s thick enough, or you might need to reduce the tomato juice slightly to maintain the right consistency.

Final Thoughts

Trying the Tomato Soup and Grilled Cheese Casserole Recipe is like wrapping yourself in a warm, delicious hug — it’s the perfect way to elevate a classic pairing into a comforting, shareable meal. Whether for a family dinner or a potluck favorite, this casserole always brings smiles and satisfied appetites. Give it a go and discover how easy it is to create that nostalgic grilled cheese and tomato soup magic in one tasty dish!

Tomato Soup and Grilled Cheese Casserole Recipe

Ingredients You'll Need

How to Make Tomato Soup and Grilled Cheese Casserole Recipe