Preheat your oven to 350°F (175°C) to ensure even baking.

Chop 2 medium sweet potatoes, 1 onion, and 1 green pepper into 1-inch cubes.

In a large skillet over medium heat, sauté the chopped vegetables in a splash of avocado oil for 8-9 minutes, adding 2 minced garlic cloves in the last minute.

Prepare a 9×13-inch casserole dish with cooking spray or olive oil, then spread the sautéed vegetables evenly in the bottom.

In the same skillet, cook 1 pound of turkey sausage over medium heat until browned, about 5-7 minutes.

Mix the cooked sausage into the casserole dish with the sautéed vegetables.

In a separate bowl, whisk together 6 eggs, 1 cup of milk, 1 tablespoon of fresh thyme, salt, pepper, and 1 cup of shredded cheese.

Pour the egg mixture over the vegetable and sausage blend, stirring gently to combine.

Bake in the preheated oven for 40-45 minutes until the center is set and the top is golden brown.

Let the casserole cool for about 15 minutes before slicing and serving.