Spinach Cheese Phyllo Squares with Three Cheese Blend
A protein-rich breakfast casserole featuring layers of flaky phyllo dough filled with spinach and three types of cheese. The overnight refrigeration allows the custard-like egg mixture to fully penetrate the layers, creating a firm texture that cuts cleanly into squares. Perfect for brunch gatherings or meal prep, this make-ahead dish combines the convenience of a casserole with the elegant presentation of individual portions.
Ingredients
- 6 sheets phyllo dough (14x9 inches)puff pastry1:1vegetarian
use same layering method
- 1 package (10 ounces) frozen chopped spinach, thawed and squeezed dry
- 2 cups shredded part-skim mozzarella cheese
- 1 cups shredded reduced-fat cheddar cheese
- 1 cups fat-free cottage cheese
- 4 large eggs
- 1 teaspoons dried parsley flakes
- ¾ teaspoon salt
- 6 large egg whites
- 1 cups fat-free milk
Instructions
- 1
Layer three phyllo sheets in baking dish, spraying each sheet with cooking spray
- 2
Combine spinach, cheeses, 2 eggs, parsley and salt, then spread over phyllo
- 3
Top with remaining phyllo sheets, spraying each layer
- 4
Cut into 12 squares and chill for 1 hour
- 5
Beat egg whites, milk and remaining eggs until blended, then pour over casserole
- 6
Cover and refrigerate overnight
- 7
Remove from refrigerator 1 hour before baking
- 8
Bake uncovered until knife inserted in center comes out clean
- 9
Let stand for 10 minutes before cutting
Tips
Squeeze spinach completely dry using paper towels or clean kitchen towel to prevent watery filling
Score phyllo before chilling to ensure clean cuts without tearing delicate layers
Allow full standing time before cutting to prevent filling from oozing out
Good to Know
refrigerate up to 3 days covered
assemble completely up to overnight before baking
cut into squares and serve warm
Common Mistakes
skip overnight chilling to avoid soggy phyllo
cover while baking to prevent proper browning
cut immediately after baking to avoid messy portions
Substitutions
FAQ
Can I freeze this casserole?
Yes, wrap tightly and freeze up to 3 months. Thaw overnight in refrigerator before baking and add 10-15 minutes to cook time.
What if my phyllo tears while layering?
Continue layering even if sheets tear. The egg mixture will bind everything together during baking for a cohesive final dish.
How long will leftovers keep?
Store covered in refrigerator for up to 3 days. Reheat individual portions in microwave or warm entire dish in 350F oven.