Crock Pot Greek Chicken -- Low Carb

This is from my friend Kolleen and her sister.

2 T extra-virgin olive oil
1 T white wine
1/3 cup sun-dried tomatoes, chopped (I use the ones in a jar in olive oil)
2 tsp garlic, minced
2 tsp onion powder
1 T oregano or a tiny pinch of dried/ground oregano
1/2 tsp black peper
1/4 tsp kosher salt
2 lbs chicken thighs, skinless and boneless, fat trimmed
2 lb Roma tomatoes, seeded and quartered (I accidentally remembered to buy 2 tomatoes instead of 2 pounds of tomatoes, so I added a can of diced tomatoes. That worked well too.)
1 can whole black olives, drained
1 cup crumbled feta cheese

Add all ingredients except the chicken, Roma tomatoes, olives, and feta to slow cooker; stir well. Add chicken, Roma tomatoes, and olives to the mixture and stir together. Cover and cook on low for 8 hours. Before serving, remove chicken. Stir in the feta cheese; heat through. Spoon mixture over chicken.