Herb Chicken Skillet with Spinach and Tomatoes

Name: Herb Chicken Skillet with Spinach and Tomatoes
Prep time: 5 min
Cook time: 25 min
Yield: 6
Ingredients: 2 tbsps (30 ml) oil; 1 1/2 pounds (750 g) chicken tenders; 1 medium onion chopped; 1 can (14 1/2 ounces/398 ml) diced tomatoes undrained; 1/4 cup (60 ml) water; 1 tsp (5 ml) basil leaves (club house); 1/2 tsp (2 ml) pepper ground black (club house); 1/2 tsp (2 ml) garlic powder (club house); 1/2 tsp (2 ml) oregano leaves (club house); 1/2 tsp (2 ml) salt; 1 package (142 g) baby spinach