Sheet Pan Egg Breakfast Sandwiches are a fantastic choice for anyone looking for a versatile and customizable dish that caters to different dietary preferences. Whether you follow a vegetarian, gluten-free, or low-carb diet, this dish can be easily adapted to suit your needs.

One of the great things about this recipe is that you can add a variety of ingredients to create different flavor profiles. For example, if you're a meat lover, you can include cooked bacon or sausage on your sandwich. Vegetarians can opt for ingredients like roasted vegetables or sautéed mushrooms.

If you're following a gluten-free diet, you can use gluten-free bread or even lettuce wraps as a substitute for traditional bread. For those on a low-carb diet, using lettuce wraps or portobello mushroom caps as the "bread" can be a delicious and satisfying option.

Here's an example of how you can make a vegetarian Sheet Pan Egg Breakfast Sandwich:

1. Preheat your oven to 375°F (190°C) and line a sheet pan with parchment paper.
2. Place sliced bell peppers, red onions, and zucchini on the sheet pan. Drizzle with olive oil, sprinkle with salt and pepper, and toss to coat.
3. Bake the vegetables for about 15 minutes, or until they are tender and slightly caramelized.
4. In the meantime, whisk together eggs, milk, salt, and pepper in a bowl.
5. Pour the egg mixture over the roasted vegetables on the sheet pan.
6. Return the sheet pan to the oven and bake for an additional 10-12 minutes, or until the eggs are set.
7. Remove the sheet pan from the oven and let it cool slightly.
8. Assemble your breakfast sandwich by placing the egg and vegetable mixture between two slices of your preferred bread or lettuce wraps.

Feel free to customize your sandwich further by adding toppings like avocado, cheese, or a drizzle of hot sauce. The possibilities are endless!

For references and additional inspiration, you can check out websites like Food Network or Allrecipes for different variations of sheet pan egg breakfast sandwiches.

Enjoy the versatility and deliciousness of this dish, no matter your dietary preference!