Hello I am writing to ask about a veggie soup recipe for a 2 qt slow cooker for 2 people only. The veggies need to be the focus here, please.

Here's a slow cooker soup from this site with vegetables and lentils. Leave out the Parmesan and pancetta, substitute nutritional yeast at serving time. Cut ingredients in half (or 1/4). https://food52.com/recipes/78163-slow-cooker-lentil-root-veggie-soup

Here's another one from this site that sounds good, also scale down by dividing ingredients by 2 for 4 servings so you have leftovers, or by 4 for 2 servings
https://food52.com/recipes/78164-slow-cooker-moroccan-spiced-lentil-soup. You can add the spinach a little before serving and simmer again as per the recipe, or leave it out.