Southern Onion Casserole
Sweet onions baked with cheddar and mozzarella under a buttery Ritz cracker topping. This Southern onion casserole is creamy, cheesy, and may cause people to reconsider their entire position on onions.
Servings 6
Calories 440kcal
Ingredients
- 4 large onions sliced to ¼-inch thickness, about 1 ½ pounds of onions
- 2 tablespoons butter
- 3 eggs
- ⅔ cup evaporated milk 5 ounces
- 1 cup Ritz cracker crumbs
- 1 ½ cups grated cheddar cheese grate from a block
- ½ cup Mozzarella grated from a block.
- 1 teaspoon salt
- ¼ teaspoon black pepper
Topping:
- 1 cup Ritz cracker crumbs coarsely crushed
- 3 tablespoons butter melted
Instructions
- Grease a 13x9 inch pan.
- Preheat the oven to 375F.
- Place onions in a saucepan and cover with water.
- Bring to a boil and simmer until tender - about 6-8 minutes.
- Drain and put back in the pan.
- Stir in butter.
- In a large mixing bowl whisk the eggs and evaporated milk together until combined. Add the onion and butter mixture.
- Stir in the Ritz cracker crumbs, grated cheddar cheese, grated Mozzarella, salt, and pepper.
- Add to prepared 13x9-inch pan.
- Combine topping ingredients in a small mixing bowl and sprinkle on top of the mixture in the prepared pan.
- Bake for 40-45 minutes, or until heated through. It will register 165F on an instant read thermometer.
Notes
Make Ahead:
Make onion casserole ahead of time! Prepare the recipe as written, but don't make or add the cracker topping. Cover the dish and refrigerate for up to three days. When you're ready to enjoy it, let the dish warm up at room temperature, add the topping, and bake.
Storage:
Cover the baking dish with foil (or transfer leftovers to an airtight container) and refrigerate for up to four days. You can also freeze onion casserole for up to three months.
Tips:
- Cut ¼ inch thick for best results.
- Don't let the onions get too soft while simmering. Just cook them until you can easily pierce them with a fork, about 6-8 minutes.
- Try substituting Cheez-Its for the Ritz sometime.
Nutrition
Calories: 440kcal | Carbohydrates: 27g | Protein: 16g | Fat: 30g | Saturated Fat: 16g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 151mg | Sodium: 948mg | Potassium: 337mg | Fiber: 2g | Sugar: 10g | Vitamin A: 826IU | Vitamin C: 9mg | Calcium: 393mg | Iron: 2mg
