An essential element of countless cuisines across Latin America and the Caribbean, the papa rellena might just be the ideal comfort food. While exact recipes vary, region to region, they're typically made by stuffing savory-seasoned ground beef into a ball of mashed potatoes, which is then rolled in breadcrumbs and fried until it's crispy, golden brown, and mouthwateringly delicious. On paper, it sounds a little like a spicier, appetizer version of a shepherd's pie. As Trader Joe's Papas Rellenas ably demonstrate, on the palate, it's so much more.  Drawing inspiration from the Cuban variation of this classic, comfy croquette, Trader Joe's Papas Rellenas are made with a picadillo-esque filling of ground beef, diced onions and bell peppers, along with a lively blend of herbs and seasonings like garlic, oregano, and black pepper. Each package contains four Papas Rellenas, which crisp up beautifully in either the conventional oven or the air fryer, after which they're ready to be enjoyed as an hors d'oeuvre, snack, or side, with a tart, creamy, or spicy dipping sauce. Or, if you prefer, they also make an excellent entrée-prepare a few Papas Rellenas per person, then serve on a plate with Spanish Style Rice, Organic Black Beans, and your favorite TJ's salad kit.