Preheat oven to 400 degrees Fahrenheit. Line a large baking sheet with Gefen Parchment Paper or aluminum foil.

Combine the eggplant, onion, and pepper chunks in a large bowl. Drizzle with oil and sprinkle with salt and pepper. Mix well.

Drizzle the cut edges of the garlic with a few drops of oil, wrap in foil, and place on the baking sheet next to the vegetables.

Roast uncovered, stirring occasionally, for 40–45 minutes, or until the vegetables are tender but slightly blackened around the edges. Remove from the oven and cool slightly.

Transfer the vegetables to a food processor fitted with the S blade. Squeeze the roasted garlic cloves out of their skins and add to the processor along with the tomato paste.

Process with quick pulses, until coarsely chopped. Transfer to a serving bowl, cover, and refrigerate to allow the flavors to blend.