Mediterranean Dish with Kielbasa, Orzo, and Spinach

This beautiful dish is easy to put together and super flavorful. Enjoy!
-1 lb kielbasa, cut in half lengthwise, then cut into chunks
-1 red onion, finely chopped
-2 cloves garlic, minced
-2 ripe Roma tomatoes, chopped (keep the juices too)
-1/2 cup kalamata olives, pitted and cut in half
-1 tsp dried oregano
-1 cup water
-1/2 cup orzo
-1 (6 oz) bag baby spinach
-1/2 cup crumbled feta cheese
Coat a large skillet with cooking spray. Add the kielbasa chunks and onion.  Give it a good stir and cook for 7-10 minutes or until sausage is golden brown and onion is tender.  Add the garlic and cook for 30 more seconds.
Stir in the tomatoes, olives, oregano, and water.  Mix well and bring to a boil.
Add the orzo and spinach.  Give it a good stir, reduce heat, cover and let it simmer for 10-12 minutes, stirring occasionally.
Remove from stove, sprinkle with the cheese, and enjoy!