Heat olive oil in a large skillet over medium-high heat.
Season chicken with salt, pepper, and onion powder, then sear in the skillet until internal temperature reaches 165 degrees Fahrenheit. Remove chicken and set aside.
Steam broccoli florets for 4 to 5 minutes until tender-crisp and vibrant green.
In the same skillet, add minced garlic and sauté for 60 seconds until aromatic.
Deglaze the skillet with chicken broth, then incorporate heavy cream and simmer for 5 minutes until the volume is reduced.
Whisk in grated parmesan cheese until the sauce achieves a cohesive, thickened consistency.
Reintroduce the cooked chicken and steamed broccoli to the skillet, tossing until thoroughly coated in the sauce.
Apportion the jasmine rice into bowls and top with the chicken and broccoli mixture.