Step 1

Preheat the oven to 400 degrees F.

Step 2

For the picadillo: Heat the oil in a large heavy skillet over medium-high heat. Add the ground beef and cook until browned, about 7 minutes. Add the olives, carrots, onions, raisins and 1 teaspoon salt and mix well to combine. Add the crushed tomatoes, bring to a simmer and simmer until the flavors are incorporated, about 10 minutes. Adjust the seasoning to taste with salt and pepper. Turn off the heat and set aside.

Step 3

For the bell peppers: In a small bowl, stir together the mozzarella, panko and cilantro. Season with salt and pepper.

Step 4

Put the bell pepper halves cut-side up on a baking sheet and season each with a pinch of salt. Use a large spoon to divide the picadillo evenly among the peppers. Bake until the filling is hot in the center and the peppers are tender, about 20 minutes.

Step 5

Remove the peppers from the oven and turn the broiler to high. Sprinkle the peppers with the panko and cheese mixture and broil until golden brown, 5 to 10 minutes.