Low FODMAP Breakfast Casserole Recipe

This hearty Low FODMAP Breakfast Casserole is made with fluffy eggs, tender potatoes, colorful bell peppers, and melted lactose-free cheddar cheese. The result is a savory and comforting bake that is gentle on the stomach and full of flavor. It is the perfect make-ahead breakfast for a busy week or a cozy weekend brunch, making enough for 6 people.

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Low FODMAP Breakfast Casserole Ingredients

For the Casserole:

• 8 large eggs
• 1 cup lactose-free milk
• 3 cups diced potatoes or plain frozen hash browns (ensure no onion, garlic, or seasoning mixes)
• 1 medium red bell pepper, diced
• 2 cups baby spinach, roughly chopped
• 1/2 cup green tops of scallions, finely sliced (green parts only)
• 1 1/4 cups lactose-free cheddar cheese, grated
• 2 tablespoons garlic-infused olive oil
• 1 teaspoon dried oregano or Italian herb mix (check that there is no garlic or onion powder)
• 1/2 teaspoon smoked paprika
• 1/2 to 3/4 teaspoon salt, to taste
• 1/4 teaspoon ground black pepper, to taste

Optional Protein:

• 4–6 slices cooked bacon, chopped (check labels for no onion/garlic)
• 1/2 cup diced ham (check labels for no onion/garlic)

Optional Toppings:

• Low FODMAP salsa (onion and garlic-free)
• Lactose-free sour cream
• Fresh chives or extra scallion greens

How To Make Low FODMAP Breakfast Casserole

1. Prepare the oven and pan: Preheat your oven to 350°F (180°C). Lightly grease an 8×8-inch (20×20 cm) baking dish with a little garlic-infused oil or butter to prevent sticking.
2. Sauté the potatoes: Heat 1 tablespoon of garlic-infused oil in a large non-stick pan over medium heat. Add the diced potatoes (or hash browns) along with a pinch of salt and pepper. Cook for 8–10 minutes, stirring occasionally, until they are tender and starting to turn golden brown. Spread them evenly into the bottom of your baking dish.
3. Cook the vegetables: In the same pan, heat the remaining 1 tablespoon of oil. Add the diced red bell pepper and cook for 3–4 minutes until soft. Stir in the spinach and cook for 1–2 minutes until it wilts. If you are adding bacon or ham, mix it in now. Season with the oregano, smoked paprika, salt, and pepper.
4. Layer the ingredients: Spread the cooked vegetable mixture over the potatoes in the baking dish. Sprinkle the grated cheese and the green scallion tops evenly over the vegetables.
5. Whisk the eggs: In a large bowl, whisk the eggs until smooth. Pour in the lactose-free milk, salt, and pepper, and whisk again until the mixture is frothy and well combined.
6. Pour and bake: Slowly pour the egg mixture over the ingredients in the baking dish. Gently wiggle the vegetables with a fork to ensure the egg spreads evenly. Bake for 30–35 minutes, or until the center is set and the top is lightly golden.
7. Cool and serve: Let the casserole cool for 10–15 minutes. This helps it firm up so you can slice it into clean squares. Serve warm with your favorite toppings.

Recipe Tips

• Check Your Spices: Many pre-mixed spice blends like “Italian Seasoning” contain hidden onion or garlic powder. Always read the label to ensure you are using pure herbs or a blend that is safe for a low FODMAP diet.
• Cool Before Slicing: It is tempting to cut into the casserole right away, but letting it rest for 10 minutes allows the eggs to finish setting. This prevents the pieces from falling apart when you lift them out.
• Grate Your Own Cheese: Pre-shredded cheese often contains starches and anti-caking agents that can affect how well it melts. Grating a block of lactose-free cheddar yourself yields a smoother, meltier texture.
• Use the Right Scallion Parts: The white bulbs of scallions (green onions) are high in FODMAPs. Be strict about using only the dark green tops to keep the dish tummy-friendly while still getting that onion flavor.

What To Serve Low FODMAP Breakfast Casserole

This casserole is a rich and filling meal on its own. To balance the richness of the cheese and eggs, serve it with a light side salad of mixed greens with a simple lemon vinaigrette. Fresh fruit also pairs beautifully; a bowl of strawberries, grapes, or melon adds a refreshing sweetness to the meal. For a beverage, try a glass of freshly squeezed orange juice or a warm cup of green tea.

How To Store Low FODMAP Breakfast Casserole Leftovers

• Refrigerate: Slice the cooled casserole into individual portions and place them in an airtight container. They will stay fresh in the refrigerator for up to 3–4 days.
• Freeze: Wrap individual slices tightly in plastic wrap and then foil, or place them in a freezer-safe bag. Freeze for up to 2 months. Thaw in the fridge overnight before reheating.

Low FODMAP Breakfast Casserole Nutrition Facts

• Calories: 260 kcal
• Total Fat: 16g
• Saturated Fat: 7g
• Cholesterol: 275mg
• Sodium: 480mg
• Total Carbohydrate: 14g
• Dietary Fiber: 2g
• Sugars: 3g
• Protein: 15g

Frequently Asked Questions

• Can I make this ahead of time? Yes. You can cook the potatoes and vegetables the night before and store them in the fridge. In the morning, just assemble the layers, whisk the eggs, and bake. You may need to add 5 minutes to the baking time if the ingredients are cold.
• Is lactose-free milk necessary? If you are strictly following a low FODMAP diet or have lactose intolerance, yes. Regular cow’s milk contains high amounts of lactose sugar. However, the hard cheddar cheese is naturally low in lactose, so some people tolerate regular cheddar well.
• Can I use sweet potatoes instead? Yes, sweet potatoes are delicious in this recipe. Just be mindful of the serving size, as sweet potatoes have a moderate FODMAP content in larger quantities (usually 1/2 cup is safe).

Try More Recipes:

• Low Fodmap Banana Pancake Recipe
• Low Fodmap Banana Muffins Recipe
• Low FODMAP Baked Oatmeal Recipe