Layered Cheesy Tuna and Zucchini Casserole
Indulge in the perfect blend of creamy, savory goodness with this Layered Cheesy Tuna and Zucchini Casserole. This easy-to-make, gluten-free casserole features tender zucchini slices layered with a rich, protein-packed tuna mixture and a medley of gooey mozzarella, cheddar, and Parmesan cheeses. Enhanced with aromatic spices like garlic, onion powder, and oregano, each bite bursts with comforting flavor. Topped with an optional breadcrumb crust for added crunch, this wholesome dish comes together in just under an hour, making it an ideal weeknight dinner or meal-prep favorite. Serve this hearty, low-carb casserole warm and watch it disappear at the table! Perfect for tuna lovers and casserole enthusiasts alike.
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Recipe Information
Ingredients
- 3 medium zucchini
- 2 cans canned tuna (drained)
- 2 cups shredded mozzarella cheese
- 1 cup shredded cheddar cheese
- 0.5 cup grated Parmesan cheese
- 1 cup sour cream
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 teaspoon dried oregano
- 0.5 teaspoon salt
- 0.25 teaspoon black pepper
- 1 tablespoon olive oil
- 0.5 cup breadcrumb topping (optional)
Instructions
Preheat your oven to 375°F (190°C) and lightly grease a 9x13-inch baking dish with olive oil.
Wash the zucchini and slice them into thin, even rounds (approximately 1/8 inch thick). Pat them dry with a kitchen towel to remove excess moisture.
In a medium bowl, mix the drained tuna with sour cream, garlic powder, onion powder, dried oregano, salt, and black pepper until well combined.
Spread a thin layer of the tuna mixture on the bottom of the prepared baking dish.
Arrange a single layer of zucchini slices over the tuna mixture, slightly overlapping the slices.
Sprinkle a layer of shredded mozzarella cheese over the zucchini, followed by a sprinkle of cheddar cheese and Parmesan cheese.
Repeat the layering process, alternating between the tuna mixture, zucchini slices, and cheeses, until all ingredients are used, finishing with a generous layer of cheese on top.
If using breadcrumbs for extra crunch, sprinkle them evenly over the top layer of cheese.
Cover the casserole dish with aluminum foil and bake in the preheated oven for 20 minutes.
Remove the foil and continue baking for an additional 15 minutes, or until the cheese is golden and bubbly.
Let the casserole rest for 5 minutes before serving. Slice into portions and enjoy!
Nutrition Facts
Calories |
2633 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 165.3 g | 212% | |
| Saturated Fat | 95.9 g | 480% | |
| Polyunsaturated Fat | 1.8 g | ||
| Cholesterol | 457 mg | 152% | |
| Sodium | 10882 mg | 473% | |
| Total Carbohydrate | 160.9 g | 59% | |
| Dietary Fiber | 10.0 g | 36% | |
| Total Sugars | 60.4 g | ||
| Protein | 142.6 g | 285% | |
| Vitamin D | 1.1 mcg | 6% | |
| Calcium | 3375 mg | 260% | |
| Iron | 7.4 mg | 41% | |
| Potassium | 1626 mg | 35% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
