Green Bean and Pearl Onion Casserole
Elevate your holiday or weeknight table with this indulgent Green Bean and Pearl Onion Casserole, a modern twist on a classic favorite. Featuring tender, vibrant green beans and sweet pearl onions bathed in a luxurious, creamy cheese sauce made with Parmesan and sharp cheddar, this dish is comfort food at its finest. Topped with golden, buttery panko breadcrumbs for the perfect crunch, this casserole is a delightfully textured and flavorful crowd-pleaser. Quick to prepare with only 20 minutes of prep time, it’s ideal for busy cooks who don’t want to compromise on flavor. Whether served as a hearty side dish for Thanksgiving or a standalone vegetarian main, this casserole is destined to become a family staple.
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Recipe Information
Ingredients
- 1 pound fresh green beans, trimmed
- 1 cup pearl onions, peeled
- 3 tablespoons unsalted butter
- 3 tablespoons all-purpose flour
- 1.5 cups whole milk
- 0.5 cup heavy cream
- 0.5 cup grated Parmesan cheese
- 1 cup sharp cheddar cheese, shredded
- 1 cup panko breadcrumbs
- 2 tablespoons extra virgin olive oil
- 0.5 teaspoon garlic powder
- 0.5 teaspoon onion powder
- 1 teaspoon salt
- 0.5 teaspoon ground black pepper
Instructions
Preheat your oven to 375°F (190°C).
Bring a large pot of salted water to a boil. Add the green beans and blanch them for 3-4 minutes until they are bright green and slightly tender. Drain and rinse under cold water to stop the cooking process. Set aside.
In a medium saucepan, bring water to a boil. Add the pearl onions and blanch for about 2 minutes. Drain, rinse under cold water, and peel. Set aside.
In a large skillet, melt 2 tablespoons of unsalted butter over medium heat. Stir in the all-purpose flour and cook for 1-2 minutes, stirring constantly, to create a roux.
Gradually whisk in the whole milk and heavy cream, cooking for 3-4 minutes until the sauce thickens. Lower the heat to a simmer.
Stir in the grated Parmesan cheese and shredded cheddar cheese until melted and creamy. Add the garlic powder, onion powder, salt, and ground black pepper. Mix well and set the sauce aside.
In a medium-sized mixing bowl, combine the panko breadcrumbs with 1 tablespoon of melted butter and 2 tablespoons of olive oil. Stir until the breadcrumbs are evenly coated and set aside.
In a 9x13-inch casserole dish, layer the green beans and pearl onions. Pour the cheese sauce evenly over the top, ensuring that all the vegetables are well-coated.
Sprinkle the panko breadcrumb mixture evenly on top of the casserole.
Bake in the preheated oven for 20-25 minutes, or until the breadcrumbs are golden brown and the casserole is bubbling.
Remove from the oven and let rest for 5 minutes before serving. Enjoy your Green Bean and Pearl Onion Casserole!
Nutrition Facts
Calories |
420 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 27.3 g | 35% | |
| Saturated Fat | 14.8 g | 74% | |
| Polyunsaturated Fat | 0.0 g | ||
| Cholesterol | 68 mg | 23% | |
| Sodium | 743 mg | 32% | |
| Total Carbohydrate | 30.1 g | 11% | |
| Dietary Fiber | 3.5 g | 13% | |
| Total Sugars | 8.3 g | ||
| Protein | 13.8 g | 28% | |
| Vitamin D | 1.0 mcg | 5% | |
| Calcium | 330 mg | 25% | |
| Iron | 2.0 mg | 11% | |
| Potassium | 349 mg | 7% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
