Begin by heating a tablespoon of olive oil in a skillet over medium-high heat. Once the oil shimmers, add the chicken thighs and sear them for about 5 minutes on each side until they develop a golden-brown crust.

In your crockpot, arrange the chopped red bell pepper, pitted olives, and diced onion around the seared chicken thighs.

In a small bowl, whisk together minced garlic, dried oregano, and any additional seasonings you desire. Once blended, pour this aromatic mixture evenly over the chicken and vegetables in the crockpot.

Cover the crockpot with its lid and set it to cook on high for 3 to 4 hours or low for 6 to 8 hours.

Once your Crockpot Greek Chicken is cooked to perfection, carefully shred the chicken if you prefer smaller, bite-sized pieces. Serve it warm.