Preheat oven (I used my toaster oven) to 350 degrees. Toss tomatoes, jalapeno pepper, onion, garlic, olive oil, salt and sugar in a medium bowl. Spread in a single layer on a baking tray lined with foil or parchment paper. Roast for 30-35 minutes until vegetables are softened. Cool. Chop vegetables into small pieces and place in a medium bowl.