To make this frittata gluten-free. Ensure that all your ingredients, especially the bacon, and spices. Are labeled gluten-free. Some pre-packaged bacon and seasoning mixes. May contain gluten as a preservative or filler. So it's crucial to check labels carefully. If you decide to use olive oil instead of bacon. It’s naturally gluten-free. Providing a great alternative. For vegetarians as well. The rest of the ingredients, such as eggs, milk, cheese, and fresh vegetables. Are naturally gluten-free. Making this a delicious and safe choice. For those avoiding gluten in their diet.