Heat olive oil in a large skillet over medium-high heat. Season chicken thighs with salt and pepper, then cook for 5-7 minutes on each side until golden brown. Remove and set aside.
In the same skillet, sauté diced onion for 3-4 minutes until soft. Add minced garlic and cook for 1 minute.
Stir in rice, chicken broth, and heavy cream. Add thyme and paprika, then bring to a gentle simmer.
Reduce heat to low, cover, and cook for 15 minutes until rice absorbs liquid.
Stir in frozen peas and return chicken to the skillet, nestling into the rice mixture.
Sprinkle Parmesan cheese on top, cover, and cook for an additional 5 minutes until heated through and cheese melts. Garnish with parsley before serving.