Prep the pan: Heat oven to 325°F (165°C).
Lightly grease a 12-cup muffin tin with oil or cooking spray. For easiest release, use silicone muffin cups or a silicone muffin pan.
Blend the base: Add eggs, cottage cheese, salt, pepper, garlic powder, and onion powder to a blender. Blend on medium until completely smooth and frothy, 20–30 seconds.
This aerates the mixture for a fluffier bite.
Fold in add-ins: In a bowl, combine chopped peppers, spinach, onion, herbs, and shredded cheese. Toss to distribute evenly.
Assemble: Divide the veggie-cheese mixture evenly among the muffin cups. Pour the egg-cottage cheese mixture over the top, filling each cup about 3/4 full.
Stir each cup gently with a spoon tip to settle the mix-ins.
Optional water bath: Place the muffin tin on a rimmed baking sheet. Pour hot water onto the sheet to create a shallow bath (about 1/4 inch). This helps prevent rubbery edges and promotes even cooking.
Bake: Bake for 18–22 minutes, until the centers are just set and a toothpick comes out with a few moist crumbs.
Do not overbake; they’ll firm up as they cool.
Cool and release: Let the bites cool in the pan for 5–10 minutes. Run a thin spatula or butter knife around the edges and lift out gently. Transfer to a rack to finish cooling.
Store for meal prep: Once fully cool, portion into airtight containers.
Refrigerate up to 4 days or freeze for up to 2 months.
Reheat: Microwave 1–2 bites for 30–45 seconds from the fridge or 60–90 seconds from frozen. Or warm in a 300°F (150°C) oven for 10 minutes.