Preheat oven to 375°F.
Line a baking sheet with aluminum foil and arrange bread slices in an even layer. Brush both sides with 2 tablespoons olive oil and season with salt and pepper. Bake for 5-8 minutes, or until bread is golden brown on the edges but still springy in the center.
Place butter, remaining 1 tablespoon olive oil, garlic, ½ teaspoon Kosher salt, and ¼ teaspoon black pepper in a food processor. Blend until smooth. Add peas and process until smooth and combined.
To assemble crostini, spread each crostini with smashed pea mixture. Sprinkle each with crumbled feta and lemon zest. Garnish with a mint leaf and serve.
Enter your zip code to find Challenge products near you.