Low Carb French Onion Frittata is a twist on the classic frittata. Featuring all the flavors from the French onion soup like caramelized onions, and Gruyere cheese for a flavorful combination.
In a large oven-safe skillet over low-medium heat, caramelize the onions in 1 tablespoon of unsalted butter and 2 tablespoons of olive oil with salt, pepper, garlic, and thyme. Once caramelized (about 15 minutes), stir in the balsamic vinegar and Worcestershire sauce. Remove onions and set aside. (If you don't have an oven safe skillet, see notes)
In the same skillet over low-medium heat, cook frozen cauliflower rice until moisture is removed. Add dots of 1 tablespoon of butter and mix until well combined with cauliflower rice. Press down the cauliflower rice with a wooden spoon to form the crust.
After preparing cauliflower rice. Spread shredded cheese over cauliflower rice, followed by the caramelized onions.
8 oz emmental or gruyere cheese
In a separate bowl, whisk eggs until well beaten. Optional: season eggs with salt and pepper. Pour whisked eggs over cauliflower rice mixture in the skillet, ensuring all nooks and crannies are filled. Sprinkle chopped chives over the top.
¼ teaspoon salt, ¼ teaspoon black pepper, 8 large eggs, 2 tablespoon chives
Place the skillet in the preheated oven and cook for 23-25 minutes until the frittata is set and the top is lightly golden brown. Remove from oven and let it set for about 10 minutes. Cut into slices and serve.
Notes
If you don't have Worcestershire sauce on hand or prefer not to use it, you can substitute it with soy sauce, tamari sauce, or balsamic glaze for a similar depth of flavor. Alternatively, you can omit the Worcestershire sauce altogether and adjust the seasoning to taste.
If you don't have an oven-safe skillet, you can transfer the cooked ingredients to a baking dish before adding the eggs and baking in the oven.