Ingredients

• 1 tablespoon butter
• 1 large sweet onion (such as Vidalia®), cut into chunks
• 6 eggs
• 1/2 cup whole milk
• 10 ounces shredded Jarlsberg cheese
• 2 ounces freshly grated Parmesan cheese
• 2 bunches Swiss chard, stems and leaves separated
• 1 teaspoon fresh thyme leaves
• 1 pinch nutmeg
• salt and ground black pepper to taste
• 1 prepared 10-inch pie crust

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Instructions

1. Preheat oven to 375 degrees F (190 degrees C).
2. Melt butter in large skillet over medium heat. Cook and stir onion in melted butter until soft, about 7 minutes; transfer to large bowl.
3. Blend eggs, milk, Jarlsberg cheese, and Parmesan cheese in a food processor or blender; pour into bowl with the onion. Add chard, thyme, nutmeg, salt, and black pepper; mix. Pour egg mixture into prepared pie crust.
4. Bake in preheated oven until a knife inserted into the center of the quiche comes out clean, 40 to 45 minutes.