Season the chicken thighs on both sides with salt, pepper and garlic powder.
In a large skillet, heat 2 tbs of olive oil over medium high heat and cook the chicken for 3-4 minutes on each side. Once the chicken is browned, set it aside and keep it warm.
Add a 1 tbs of oil to the same skillet and add the potatoes cut side down. Season the potatoes with salt and pepper and stir them around for about 7 minutes or until the potatoes are browned.
Stir in the minced garlic, oregano and fresh rosemary.
Add the chicken broth and Tuscan Italian dressing. Bring the liquid to a boil, reduce the heat to low and place a lid on top of the skillet. Let everything simmer on low for 10 minutes.
Add the chicken back into the skillet (be sure to add any juice/ liquid that ran off of the chicken back into the pan, too). Simmer the chicken on low heat in the sauce for about 5-10 minutes or until chicken is finished cooking all the way through.
Remove the chicken and potatoes from the skillet and add them to a serving dish.
Add the peas to the remaining liquid in the pan and let them simmer for about 2-4 minutes or until the peas are cooked and plump.
Spoon the sauce and peas over the chicken and potatoes. Serve warm and enjoy!