Chop broccoli florets nice and small so they can all fit inside the chicken.
Don’t cut the chick breast all the way through, just enough to create a pocket
If you don’t have an oven safe skillet, sear the chicken in a skillet, then transfer to an oven safe dish
Preheat oven to 425 F
Season both sides of the chicken breasts with salt, pepper, paprika, and 1/2 tsp garlic powder.
Use a sharp knife to cut a slice through the middle of the chicken breasts, but not all the way through, creating a pocket for the filling
For the filling, place the broccoli in a microwaveable dish and add about 2 tbps water. Cover and microwave for 1 minute. Drain excess water.
To the dish, add the bell pepper, cheese, mayo, remaining garlic powder, salt, and pepper to taste. Mix until combined then divide the mixture between the chicken breasts, using a toothpick to secure if necessary
Heat a large, oven safe skillet over medium heat an add the olive oil.
Sear the chicken for 3-4 minutes on each side. Cover the skillet with foil and bake in over for 15-17 minutes, or until chicken reached 165 degrees