Heat 1 tbsp olive oil in a large pot over medium heat. Add 1 medium diced onion, 1 cup diced celery, and 1 cup sliced carrots, cooking for about 5-7 minutes until softened.
Stir in 3 cloves of minced garlic and cook for 1 minute until fragrant.
Add 2 cups diced potatoes, 1 medium diced zucchini, 1 (15 oz) can diced tomatoes (undrained), and 4 cups vegetable broth. Bring the mixture to a boil.
Reduce the heat to a simmer. Cover and let it cook for 20 minutes, or until the potatoes and carrots are tender.
Stir in 1 cup frozen corn and simmer for an additional 5 minutes.
Remove from heat. Stir in 1 tbsp chopped fresh parsley, 1 tsp salt, and 1/2 tsp black pepper.
Serve hot and enjoy this wholesome dish.