Preheat the oven to 350ºF. Line an 8 or 9" square glass baking dish with parchment paper (or grease well) and set aside.
Heat the olive oil in a skillet over medium heat. Add the zucchini, broccoli, and spinach, and sauté for 3 to 5 minutes or until the vegetables are just soft.
In a medium mixing bowl, whisk the eggs. Stir in the shredded cheese, flour, and spices until well combined. Add the cooked vegetables and stir.
Scoop the mixture into the lined baking dish and transfer to the oven. Bake for 20 minutes or until the eggs are set.
Allow the dish to cool, then slice into "sticks" (or whatever shape you like!). Store leftovers in the fridge, and consume within 5 days (or freeze for later!)
Notes
Any flour will work for this recipe - it's just a small amount to help bind it together! Coconut, almond, gluten free all purpose... whatever you've got!