If you don’t have a grill, you can broil the peppers and tomatoes. The timing should be approximately the same, depending on how close you can get your broiler pan to the heat.
Makes 4 cups
2 yellow bell peppers, halved lengthwise and seeded
2 jalapeño peppers, halved lengthwise and seeded
2 pounds plum tomatoes
1 small red onion, finely chopped
⅓ cup chopped fresh mint
3 tablespoons red wine vinegar