Greek Chicken Pasta

1 tablespoon olive oil

2 crushed garlic clove

1/2 cup red onion s

1 lb cut into bite-size pieces boneless skinless chicken breasts

14 ounces drained and chopped marinated artichoke hearts

1 large chopped tomato es

1/2 cup feta cheese

3 tablespoons fresh parsley

2 tablespoons lemon juice

2 teaspoons dried oregano

1 to taste salt and pepper

2 wedged, for garnish lemon