Easy Spinach Pie Recipe

Name: Easy Spinach Pie Recipe
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: American
Ingredients: 1 pie crust (refrigerated or homemade); 1 Tablespoon olive oil (or coconut oil); 1 small onion (minced); 2 cloves garlic (minced); 1 teaspoon balsamic vinegar; 1/4 teaspoon black pepper; 1 teaspoon oregano; 10 ounces package of frozen chopped spinach (thawed and drained); 2 large whole eggs (or 1/3 cup egg whites); 1 cup low fat cottage cheese; 1/2 cup feta cheese