Greek Oregano Braised Chicken Dinner

Name: Greek Oregano Braised Chicken Dinner
Prep time: 20 min
Total time: 20 min
Cuisine: European, Mediterranean, Greek
Ingredients: 3 tablespoons olive oil; 2 pounds boneless skinless chicken thighs season with salt and pepper; 1 large yellow onion, coarsely diced (about 1 1/4 cups); 3 cloves garlic, peeled smashed and coarsely chopped; 1 cup chicken stock; 1 (28-ounce) can whole or crushed tomatoes; Salt and pepper to taste; Kalamata olives, sliced in half; Feta cheese; Greek oregano; Rice or pasta or whatever starch you might like on the side