Step 1

Preheat oven to 375 degrees. Spray a 9x13 baking dish with non-stick spray.

Step 2

Place the chicken breasts on a cutting board. Use a sharp knife to cut a deep pocket into the side of each chicken breast.

Step 3

Add the au jus gravy and ranch seasoning to a small bowl and stir together. Sprinkle half of the seasoning mix over the chicken, rubbing it in to fully coat the chicken. Reserve the other half for another use. See notes.

Step 4

In a small bowl, stir together the cream cheese, monterey jack, mayonnaise, and chopped peppers until well combined.

Step 5

Spoon the cream cheese mixture into the pocket you cut into the chicken.

Step 6

Place the chicken in the prepared baking dish and top each piece with 2 thin slices of butter.

Step 7

Bake, uncovered, for 25-30 minutes or until the chicken is cooked through.

Step 8

Top with additional pepperoncini pepper rings before serving, if desired.