Preheat oven to 400 degrees and line a large sheet pan with foil or parchment paper.
Place tomatoes, carrots, red pepper, and onion on a sheet pan. Drizzle olive oil and season with salt and pepper. Toss to coat. Roast vegetables for about 25 minutes, or until tender.
After roasting, add vegetables to a blender and squeeze the garlic from the skin. Blend until smooth, then transfer to a small pot with broth, seasonings and sugar. Heat for 5 minutes, then stir in the heavy cream.
Serve warm with Parmesan and toasty bread.
Keyword carrot bisque, red pepper tomato bisque, roasted veggie bisque