Heat large frying pan on medium heat. Add olive oil and garlic. Cook garlic until fragrant and translucent.
Add all the spinach (it will shrink and cook down a ton). Gently stir the spinach until it’s all cooked and wilted, but not mushy.Add salt and pepper to taste. Add some optional red chili flakes if you want a little heat. Then add the lemon zest and lemon juice. Stir it all into the spinach.
That’s it! It’s a crazy easy dish we love to eat with meats, seafood cause it’s the perfect veggie side dish.