Veg Out With This Broccoli Rabe Lasagna

Ingredients

• 4 tablespoons butter
• 1/4 cup all-purpose flour
• 2 cups half-and-half
• Salt and pepper
• Pinch cayenne
• grated nutmeg
• 1 pound dried lasagna noodles
• 2 bunches broccoli rabe
• 4 garlic cloves
• 1/2 cup extra virgin olive oil
• 1 pound ricotta cheese
• 1/2 teaspoon grated lemon zest
• 4 ounces Parmesan or a combination of Parmesan and pecorino