A delightful casserole combining sweet onions, creamy cheese, and rice for a comforting dish.
Preheat your oven to 325°F (165°C).
Preheating the oven ensures even cooking from the start.
Melt the butter in a large saucepan over medium heat.
Use unsalted butter to control the saltiness of the dish.
Add the sliced sweet onions to the pan and cook, stirring frequently, until they are golden brown, about 30 minutes.
Stirring frequently prevents the onions from burning and ensures even caramelization.
Stir in the Swiss cheese, half-and-half cream, cooked rice, chopped parsley, salt, and white pepper.
Mix thoroughly to ensure all ingredients are evenly distributed.
Transfer the mixture to a buttered baking dish and spread it out evenly.
Butter the dish well to prevent sticking and make serving easier.
Sprinkle the top with smoked paprika for added flavor and color.
Smoked paprika adds a subtle smoky flavor that complements the dish.
Bake in the preheated oven for about 1 hour, or until the top is golden and bubbly.
Check the casserole halfway through to ensure even baking.
Let the casserole cool slightly before serving. Garnish with additional parsley if desired.
Letting it cool slightly makes it easier to serve and enhances the flavors.