Garlic and Sweet Potato Crostini

Heat oven to 400°. Cut 1⁄4" from the top of each garlic head, exposing the cloves. Drizzle each with olive oil and wrap tightly in foil. Place in a baking dish and bake until heads are soft and lightly browned, 30-40 minutes; let cool slightly. Squeeze cloves from skins into a bowl; set aside.

Combine sour cream, zest, capers, pepper flakes, salt, and pepper in a bowl. Cover with plastic wrap and refrigerate.

Heat olive oil in a 10" skillet over medium heat. Add sweet potatoes, salt, and pepper; cover and cook, stirring occasionally, until softened and beginning to brown, about 8 minutes. Transfer to a paper towel-lined sheet; set aside.

Brush bread slices with olive oil, and place on a baking sheet. Bake, turning once, until crisp and golden, about 8 minutes. Remove and let cool slightly. Spread about 1 tsp. of the roasted garlic on each crostini. Divide sour cream mixture between crostini. Top with sweet potatoes, and garnish with chopped capers.