Season the chicken tenderloins with salt, pepper, and garlic powder. Heat some olive oil in a large skillet over medium heat. Once the oil shimmers, sear the chicken on both sides until golden brown and fully cooked. Transfer the chicken to a plate, cover it, and set aside to keep it warm.
Using the same skillet, melt half of the butter over medium heat. Add minced garlic, red pepper flakes, and a pinch of salt. Sauté the garlic gently until fragrant. Be careful not to burn it. Turn the heat up slightly and stir in the white wine. Cook the mixture for about 5 minutes, allowing it to reduce by half. Set aside 2 tablespoons of this sauce to drizzle on the finished dish later.
Pour the uncooked rice into the skillet and stir it into the remaining sauce. Toast the rice for 3-4 minutes until it’s lightly golden. Add chicken broth and a bit more salt, then bring the mixture to a low boil. Reduce the heat to medium-low, cover the skillet, and simmer for 20 minutes. Stir occasionally in the first few minutes to prevent sticking.
Once the rice is tender and creamy, stir in the freshly grated Parmesan cheese. Layer the cooked chicken tenderloins on top of the rice, then pour the reserved garlic butter sauce over the chicken. Cover and leave the skillet on low heat for 5 minutes to allow the flavors to meld beautifully.
Garnish the dish with a bit more Parmesan and freshly chopped parsley, then serve immediately while it’s hot and full of garlicky, cheesy goodness.