Broccoli-Cheddar Quiche

INGREDIENTS

3/4 lb

Broccoli florets

2 cups

Yellow onion, medium

6

Eggs, large

1

All-purpose flour

1

Salt and ground pepper, Coarse

1

Single-crust pie dough, homemade or store-bought

1 tbsp

Butter, unsalted

1 cup

Cheddar, grated sharp

3/4 cup

Heavy cream