Preheat oven to 350ºF.
Heat olive oil in a medium oven-proof skillet. Add in diced onion, minced garlic, and vegan sausage slices. Stir frequently until sausage has slightly browned.
In a large mixing bowl, whisk together JustEgg and seasonings, set aside
Add chopped kale to the skillet and cover until kale has cooked down, about 2 minutes.
Then add spaghetti squash to the skillet and stir, and in the sun-dried tomatoes.
Pour the whisked JustEgg mixture into the skillet and use a spatula to lift the veggie mixture allowing the JustEgg to evenly disperse.
Top the mixture with the vegan cheddar cheese and transfer the skillet to the preheated oven and bake uncovered for 30-35 minutes, until the mixture is set.
Allow the skillet to cool and set for 15-20 minutes. Slice, serve, and enjoy!