Pre-heat the oven to 350℉ and gather all of your ingredients and equipment.
In a blender, process the eggs. Then add in the cottage cheese and riced cauliflower, and blend everything together.
Pour the mixture into a large mixing bowl and in milk.
Mix in shredded cheese.
Add in scallions, and, using a Microplane (or other fine grater), season with freshly grated nutmeg (a little bit goes a very long way, so use sparingly!), along with salt and pepper, to taste. Whisk everything together.
Spray your muffin pans with Pam or other cooking spray. This will keep your mini frittatas from sticking to the pan once they are cooked and make them easier to remove. Carefully pour some of your egg custard mixture into a glass liquid measuring cup and begin filling each cavity of your prepared muffin tins approximately ⅔ of the way full.
Bake in a preheated oven for about 30-35 minutes. You can check for doneness by pressing gently over the center of each frittata. If there is any wiggle, or if the centers do not pop back quickly, return to the oven for a few extra minutes.
Allow to cool in the pan for a few minutes before trying to remove the frittatas. Don't worry if they have puffed up slightly higher than expected- as they cool, then will set and shrink to a normal height. If they give you any trouble popping out of the tin, simply run an offset spatula or a standard kitchen knife along the outside of each one and they should release easily. Store your mini frittatas in the fridge and serve throughout the week for breakfast paired with fresh fruit, or for lunch alongside a simple salad. They can also be frozen by placing two each in individual snack size Ziploc bags, and store altogether in a large, gallon-sized bag. Wrap (or cover) frittatas with paper towels and microwave for approximately one minute to reheat.