Feta and Cheddar Hash Brown Casserole

Ingredients (13)

• 1 package
• 6 slices bacon
• 1 yellow onion
• 1-1/2 cups crumbled fat free feta cheese
• 1-1/2 cups mild cheddar cheese
• 1-1/2 cups nonfat plain yogurt
• 2 tablespoons butter
• 1/2 cup all purpose flour
• 1 teaspoon dried rosemary
• 1 teaspoon dried thyme
• salt and pepper
• 1 large egg
• chopped green onions and crumbled bacon