Preheat and Grease:

Preheat oven to 375°F

Grease standard 12-cup muffin tin thoroughly with nonstick cooking spray or light brush of butter

Make sure to coat each cup generously to ensure clean release after baking

Beat Eggs with Cream Cheese:

Crack all 8 eggs into large bowl

Add 220g garlic and herb cream cheese

Beat everything together until cream cheese is as fully incorporated as possible

Small pieces of cream cheese remaining are fine - they will melt and distribute during baking

Prep and Add Vegetables:

Finely chop mixed bell peppers

Finely chop cherry tomatoes

Roughly chop fresh spinach

Add all chopped vegetables to egg and cream cheese mixture

Season with salt and pepper to taste

Stir to combine everything evenly

Fill the Muffin Tin:

Pour or ladle egg and vegetable mixture evenly into greased muffin tin cups

Fill each cup approximately three-quarters full (leave room for puffing during baking)

Do not overfill or frittatas may overflow

Bake:

Bake at 375°F for 15-20 minutes

Check at 15 minutes (ovens vary)

Frittatas are done when set in center, lightly golden around edges, and puffed slightly

Toothpick inserted into center should come out clean

Pull from oven as soon as centers are just set (avoid overbaking for rubbery texture)

Cool and Release:

Let frittatas cool in muffin tin for few minutes before removing

Run knife or thin spatula around edges of each cup to help release

Pop frittatas out of tin

Serve warm, at room temperature, or save for later

Critical Tips:

Grease muffin tin generously (difference between clean release and frittatas sticking/tearing)

Chop vegetables as finely as possible (larger pieces create uneven pockets and harder to eat)

Don't overfill muffin cups (only three-quarters full for proper puffing)

Check at 15 minutes for doneness (avoid overcooking)

Let cool slightly before removing (more fragile when hot, easier to remove when slightly firm)

Storage:

Refrigerate: Store in airtight container for up to 4 days

Eat cold from fridge, warm for 30 seconds in microwave, or bring to room temperature

Freeze: Arrange cooled frittatas on baking sheet, freeze until solid, transfer to freezer bag for up to 2 months

Reheat from frozen: Microwave 60-90 seconds

Variations and Substitutions:

Different cream cheese: Use plain cream cheese (add garlic powder, dried herbs, onion powder for seasoning), chive and onion cream cheese, or dairy-free cream cheese alternative

Additional vegetables: Finely diced zucchini, mushrooms, sun-dried tomatoes, caramelized onions

High water content vegetables: Sauté briefly first to remove excess moisture

Other mix-ins: Crumbled cooked sausage, bacon pieces, different herbs

Add cheese topping: Sprinkle shredded cheddar, mozzarella, or crumbled feta on top before baking

Large frittata: Pour entire mixture into greased 9-inch oven-safe skillet, bake 20-25 minutes, slice into wedges

Serving Suggestions: Serve warm alongside simple green salad for light lunch. Pack into picnic basket with fruit, crackers, and cheese. Add to brunch table with fresh fruit and toast. Grab from refrigerator for fast, protein-rich breakfast. Perfect for meal prep - have ready-to-go option all week.

Doneness Check: Tops should look set and not jiggly when pan is gently shaken. Lightly golden around edges and slightly puffed in center. Toothpick inserted into center comes out clean with no wet egg.

Meal Prep: One of best meal prep recipes because stores and reheats so well. Perfect for busy weeks and grab-and-go meals.