Toasts topped with creamy ricotta, sweet sugar snap peas, and caramelized leeks are a perfect appetizer for spring.
In a large skillet, heat 1/4 cup oil over medium. Add leeks; season with salt. Reduce heat to low and cook, stirring often, until very soft and reduced by half, about 25 minutes. Add Aleppo pepper, zest, rosemary, and another pinch of salt. Continue to cook, stirring occasionally, until leeks are golden, about 5 minutes more. Remove from heat; stir in lemon juice.
Preheat broiler. Stir 1/2 teaspoon salt, 1/4 teaspoon pepper, Meyer lemon zest, and 1 tablespoon oil into ricotta. In another bowl, toss peas with 2 tablespoons oil, lemon juice, and mint. Season with salt and pepper.
Broil bread in a single layer on a rimmed baking sheet, flipping once, until toasted, 1 to 2 minutes. Spread with ricotta mixture, then cut each slice in half. Transfer to a serving platter and top with melted leeks and pea mixture. Serve.