Adapted from Ina Garten’s Recipe
1 medium eggplant
2 red bell peppers, seeded
1 red onion, peeled
2 garlic cloves, minced
3 tablespoons good olive oil
1 teaspoons kosher salt
1/2 teaspoon freshly ground black pepper
1/4 teaspoon red pepper flakes
2 tablespoons tomato paste
Preheat the oven to 400 degrees F.
Cut the eggplant, bell pepper, and onion into 1-inch cubes. Toss them in a large bowl with the garlic, olive oil, salt, and pepper. Spread them on a baking sheet. Roast for 45 minutes, until the vegetables are lightly browned and soft, tossing once during cooking. Cool slightly.
Place the vegetables in a food processor fitted with a steel blade, add the tomato paste, and pulse 3 or 4 times to blend. Taste for salt and pepper.