1Rinse the lentils under cold water and set aside.
Heat the olive oil in a large pot over medium heat.
Finely chop the onion and garlic, then add them to the pot. Sauté until the onion is translucent.
Add the lentils to the pot and stir to combine with the onion and garlic.
Chop the tomatoes and add them to the pot.
Pour in enough water to cover the lentils and tomatoes, then bring to a boil.
Reduce the heat to low and let the soup simmer for about 30 minutes, or until the lentils are tender.
Season with salt and pepper to taste.
Use an immersion blender to blend the soup to your desired consistency, or leave it chunky if you prefer.
Serve hot and enjoy your Lentil and Tomato Soup.