Heat the olive oil in a large pot over medium heat. Add the diced onions and sauté until translucent, about 3-4 minutes. Add the carrots and celery, cooking for another 5 minutes while stirring occasionally.
Add the ground turkey to the pot, breaking it apart. Cook until browned and no longer pink, about 5 to 7 minutes. Season with salt and pepper.
Stir in the minced garlic and Italian seasoning, sautéing for about a minute until fragrant.
Add the tomato paste, stirring well and cooking for another minute before pouring in the chicken broth and crushed tomatoes.
Add the diced potatoes, bring to a gentle boil, then reduce heat to low. Cover and let simmer for about 20 minutes until the potatoes are tender.
Stir in the frozen green peas and simmer for another five minutes.
Sprinkle freshly chopped parsley on top before serving.