Preheat oven to 400F
Grate the potatoes, add 1/2 tsp salt, mix well, let sit in colander for 20 min
In large skillet, sauté spinach with olive oil. Cook until most water has evaporated out. Add 2tsp garlic powder, 2 tsp onion powder, 1/2 tsp salt. Set aside
Squeeze as much water as possible out of potatoes. Season with 1/2 tsp garlic powder, 1/2 tsp onion powder, and 1/2 tsp pepper. Add vegetable oil and mix well
Spray a 12 muffin tin pan with cooking spray. Arrange grated potatoes in each muffin tin, pressing against bottom and up the sides
Bake in oven for 15 minutes or until they are lightly brown. Remove from oven and set aside
In a medium bowl, beat eggs, a pinch of salt, and spinach; mix until well combined
Spoon spinach mixture into potato nests, then bake for 10 - 15 min or until egg is cooked
Let cool slightly, then carefully remove with a butter knife