Ingredients

• 1 cup finely chopped onion
• 1/2 cup crumbled feta cheese
• 1/2 cup grated Edam cheese
• 1/4 cup crumbled Roquefort cheese
• 2 tablespoons chopped fresh dill
• 2 tablespoons fresh breadcrumbs
• 1 large egg yolk
• 3 tablespoons olive oil
• 2 10-ounce packages ready-to-use spinach, coarsely chopped

Instructions

1. Preheat oven to 350°F. Lightly butter 11 x 7 x 2-inch baking dish. Mix first 7 ingredients in large bowl.
2. Heat oil in large pot over medium-high heat. Add spinach; sauté until wilted and juices evaporate, about 3 minutes. Transfer spinach to strainer; drain well. Arrange spinach over bottom of prepared dish. Sprinkle with cheese mixture. Bake until heated through, about 20 minutes.
3. Preheat broiler. Broil spinach and cheese until cheese is golden on top, watching closely, about 2 minutes.