First, pat your chicken tenderloins dry and season them generously all over with salt and pepper. This helps them get a nice sear and locks in flavor.
Heat the olive oil in a large skillet (one with a lid you can use later for the rice) over medium-high heat. Add the seasoned chicken and cook for about 3-4 minutes per side, just until they're golden brown and cooked through. Don't overcrowd the pan; cook in batches if needed. Once they're done, remove the chicken from the skillet and set it aside on a plate.
Now, reduce the heat to medium and add the stick of butter to the same skillet. Let it melt.
Once the butter is melted, add the minced fresh garlic, garlic powder, and red pepper flakes. Stir frequently and cook for just about 1-2 minutes until the garlic is fragrant. Be careful not to burn the garlic!
Add the white rice to the skillet and stir it around with the garlic butter for about 1 minute, letting it toast slightly.
Pour in the chicken broth and add the 1/2 tsp of salt. Stir everything together, scraping up any delicious bits from the bottom of the pan.
Bring the liquid to a simmer, then immediately reduce the heat to low, cover the skillet tightly with the lid, and let it cook for about 15-20 minutes, or until the rice has absorbed most of the liquid and is tender. Avoid lifting the lid while it's cooking!
Once the rice is cooked, turn off the heat. Fluff the rice gently with a fork. Stir in the freshly grated Parmesan cheese until it's melted and makes the rice wonderfully creamy.
Nestle the cooked chicken tenderloins back into the skillet on top of the garlic Parmesan rice. Spoon some of that buttery garlic sauce over the chicken.
Serve immediately! I love to garnish with a little fresh parsley if I have it on hand.