INGREDIENTS
2 1/2 cups
Cauliflower
3/4 cup
Leeks
1 cup
Sweet onion
7
Egg whites (about 1 cup)
3/4 cup
Chicken broth, low-sodium
1
Salt and pepper
1 tsp
Olive oil, extra-virgin
1
9-inch frozen whole wheat pie shell, frozen whole wheat
1/2 cup
Gruyere cheese, packed