Heat deep skillet or Dutch Oven on medium high drizzling Olive Oil to coat the bottom.
Add sliced Peppers, Onions and Garlic and begin sautéing until vegetables begin to soften and Garlic becomes fragrant.
Place the Chicken in pan.
Add the Garlic Herb Seasoning, Onion Powder, Adobo Seasoning, Cumin, Paprika, a generous pinch of Black Pepper and Tomato Paste (or Ketchup). Stir to incorporate seasonings into the Chicken and vegetables.
Proceed to add the Sofrito, Spanish Olives and fresh Cilantro in and continue stirring. Let it simmer for a couple of minutes to infuse the flavor into the Chicken.
Add 3 cups of Water and continue to stir until everything is combined. Cover with lid and let simmer for 30-40 minutes or until the chicken is cooked through stirring periodically.
Midway through cooking process, create Slurry by mixing Cornstarch and Water. I like my Pollo Guisada a little on the thicker side but this is optional.
Add Slurry into Stew and give it a stir. It will begin to thicken.
At this point, taste to see if additional seasoning is needed. Cover with lid and lower temperature to medium/low and continue cooking until ready to serve.