Prepare farro in a medium saucepan following stove top instructions on package. Meanwhile chop the garlic, onions, and oregano.
Zest orange and squeeze a ½ cup of orange juice.
In a large skillet, turn heat on to medium high adding olive oil or a generous amount of avocado oil spray.
Season the fish on both sides with salt and pepper.
Add the fish and cook for 3 minutes on each side, reducing heat to medium-low.
Move the fish to the edge of the pan, and into the center of the pan add the onions, garlic, oregano, cherry tomatoes, orange zest, juice and red wine vinegar.
Cover for about 4 minutes or until the tomatoes soften and fish is cooked.
Remove farro from heat, stir in the spinach. Place in a plate, then serve the fish over the farro with the sauce and veggies.