Preheat oven to 350 degrees.
Heat olive oil in a medium skillet until fragrant. Use an oven proof skillet if you have one. If not, spray an 8"x8” baking dish with cooking spray.
Add onion to the skillet and cook, stirring occasionally, for 2 - 3 minutes.
Add zucchini to the skillet and cook, stirring occasionally, for 3 more minutes.
Meanwhile, whisk together eggs, almond milk, salt, and pepper.
Pour egg mixture into the skillet and cook until edges start to pull away from the pan, about 5 - 7 minutes.
If you’re using an oven proof skillet, place it into the oven to bake. Otherwise, transfer the egg and vegetable mixture to the baking dish and put into the oven.
Bake at 350 degrees until set, 16 - 18 minutes.
Enjoy!