First, start by preheating the oven to 400°F / 200°C. If not using a non-stick muffin tin, lightly grease with oil or use muffin liners. I used silicone muffin liners. In a big bowl gradually mix chickpea flour and water. Whisk well to get a runny mixture without any lumps. Add the olive oil.
Next, add finely chopped veggies and spices. Mix again.
Fill each muffin cup with the batter. I used a 12 cup muffin tin and filled approximately ¾ each cup or to the full (this may vary slightly depending on the veggies you'll use). Sprinkle with sesame seeds if you like. Bake for 30-35 minutes or until an inserted toothpick comes out clean. If after baking for 35 minutes the center seems soggy, remove from the oven, and just place them on a cooling rack and let them cool. In this way, they'll firm up and will be ready to eat.
Serve warm or at room temperature. Keep any leftovers on the kitchen counter for 1 day, refrigerated for 3-4 days. Freeze in freezer-friendly containers or bags for up to 2 months. Let them thaw before reheating. You can reheat in a toaster, microwave, or oven.
Notes
Be sure to stir well the flour and water and don't leave any lumps at all. This will help to avoid dry chickpea flour lumps in your mini frittatas.
I used silicone liners and the muffins came out perfect but if you don't have a non-stick muffin tin I recommend you to spray or lightly grease your muffin holes with oil so they can come out easily without sticking to the pan.
These mini vegan frittatas are so versatile! You can use any leftover veggies you have at home. You can add fresh baby spinach, kale, green peppers, carrots, green peas, or broccoli. Be sure to use approximately 3-4 cups of your favorite vegetables (finely chopped).
If you use different veggies baking time may slightly vary. Be sure to make the toothpick test, bake until inserted toothpick in the middle of the muffin comes out clean.