Vegetarian Roasted Tomato Basil Soup

Recipes by Chef Steph

Chef Steph

Move over canned soup—this vegetarian (or vegan) roasted recipe will delight!


Roasted Tomatoes
  • 3 pounds - roma or plum tomatoes, cut in half
  • 3 tablespoons - olive oil
  • 8 - cloves garlic, peeled
  • dash - salt and pepper, to taste
Caramelized Onions
  • 1/2 tablespoon - olive oil
  • 2 large - yellow onions, thinly sliced
Additions To The Soup
  • 1/2 cup - packed fresh basil leaves
  • 1/2 tablespoon - dried oregano or 1 tsp fresh
  • 1-2 cups - water or vegetarian broth, depending on how thick you want the soup
  • dash - Freshly ground salt and pepper, to taste
Optional Add Ins
  • 1/2 cup - coconut milk for a creamy vegan soup
  • 1/2 cup - heavy cream for a creamy texture
  • 1-2 tablespoons - butter, for richer flavor
  • pinch - parmesan cheese, for enhancing tangy flavor
Prep time
20 minutes
Cook Time
60  minutes
1 to 4


  1. Preheat oven to 400 degrees F. Line a large baking sheet with parchment paper. Place halved tomatoes and garlic cloves on the baking sheet and drizzle with 3 tablespoons of olive oil. Generously season with salt and pepper. Roast in the oven for 40-45 minutes.
  2. While the tomatoes are roasting, you can make the caramelized onions: Add 1/2 tablespoon olive oil to a large pot and place over medium heat. Add the onion slices and stir to coat the onions with olive oil. Cook, stirring occasionally. Check onions every 5-10 minutes until they have entirely caramelized and turned golden in color. This usually takes 20 minutes.
  3. Once tomatoes and garlic are done roasting, allow them to cool for 10 minutes, then add them to a food processor or high powered blender and blend until smooth. Next, add basil and caramelized onions and mix again. Alternatively, you can add the tomatoes to the large pot and use an immersion blender. It's just about what you have available to you.
  4. After blending, transfer back to the pot, turn to medium-low heat and add in oregano, vegetarian broth and salt and pepper to taste. From there you can add in any additional add-ons you want (as listed in the ingredients). Allow tomato soup to simmer 10 minutes before serving. To serve, garnish with parmesan cheese and serve with grilled cheese if desired. Serves 4.

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