Sun-dried tomatoes have rich umami flavor which makes a great foundation for this simple chicken soup with a tomato base. Smarts: This soup is very flexible, so feel free to add in any other vegetables you have on hand.
Heat a Dutch oven over medium-high heat. Add oil and then onions. Saute until onions are soft, 3 to 4 minutes.
Add garlic and sun-dried tomatoes. Saute for 1 minute.
Add chicken and saute with aromatics just to get it started cooking.
Add tomatoes (including liquid) and stock.
Add zucchini and mushrooms to soup. Reduce heat to a low simmer (be careful not to let it boil or the chicken will turn tough) and cover soup with a lid. Simmer until zucchini is tender and chicken is cooked through, ~10 minutes.
Remove soup from heat and stir in lemon juice. Season with some salt and pepper.
Divide soup between serving bowls. Top with basil. Enjoy!