Prepare the Polenta: In a medium saucepan, bring the vegetable broth to a boil. Slowly whisk in the polenta, reducing the heat to low. Stir continuously for about 5-7 minutes until thickened. Remove from heat and fold in 0.75 cup of the cheddar cheese, stirring until melted and combined. Set aside to cool slightly.
Cook the Turkey: While the polenta is cooking, heat olive oil in a skillet over medium heat. Add the ground turkey, garlic powder, onion powder, salt, and pepper to the pan. Cook for about 7-10 minutes until the turkey is browned and fully cooked. Stir in the chopped broccoli and continue to cook for an additional 3-4 minutes until the broccoli is tender. Remove from heat.
Combine Ingredients: Once the polenta mixture has cooled slightly, fold in the cooked turkey and broccoli mixture until well combined.
Shape the Prongs: Grease a baking sheet with cooking spray. Using your hands, scoop out portions of the polenta mixture and shape them into small, prong-like shapes or logs. Place them on the greased baking sheet.
Bake the Prongs: Preheat your oven to 400. Bake the shaped prongs for 20-25 minutes or until the edges are golden and slightly crispy.
Add the Cheese: After baking, remove the prongs from the oven. Sprinkle the remaining 0.25 cup of cheddar cheese on top of each prong and return to the oven for an additional 5 minutes or until the cheese is melted and bubbly.
Serve: Once done, remove from the oven and let them cool slightly. Garnish with fresh parsley before serving.