Brown the turkey. Heat 2 Tbsp olive in a large pot over medium-high heat. When hot, add ground turkey, season with a generous 1 tsp of kosher salt, then cook, breaking up with a spatula, until browned on all sides, about 5-7 minutes. Use a slotted spoon to transfer to a plate.
Sauté the vegetables. If the pot is a little dry, add another 2 Tbsp olive oil. Add the zucchini, yellow squash, onion, and red pepper. Season with ½ tsp Kosher salt, then cook, stirring occasionally, until softened, about 5 minutes.
Add the tomatoes. Add 1 (28oz) can of crushed tomatoes and 1 (28oz) can of whole tomatoes, breaking the whole tomatoes up either with your hands or a spatula.
Season the turkey chili. Add 2 Tbsp chili powder, 1 Tbsp ground cumin, 1 Tbsp dried basil, 1 Tbsp dried oregano, 1 Tbsp Kosher salt, and 1 tsp freshly ground black pepper, then stir to combine. Stir in 1 (15oz) can of cannellini beans.
Simmer. Return the browned turkey to the pan, then squeeze the juice of 1 lemon on top. Reduce the heat to a simmer, then cover and cook for 30 minutes. Taste and adjust seasoning as needed.
Garnish, then serve. When ready, serve big turkey chili over white rice with your favorite chili toppings, such as: shredded cheese, sour cream, diced raw onion, and fresh cilantro.