This oven dish is the perfect morning breakfast! It's a holiday brunch idea and a side dish for dinner too! Made with simple ingredients, this easy Spinach Feta Casserole is sure to impress. It's a gluten free food, a low carb recipe, and a vegetarian dish! Can you believe this Belly Full recipe? It's a must-try Psinach Casserole with feta! Save this pin!