Irish Lassie's Liver and Onions

Heat the olive oil in a large skillet over medium heat. Stir in the garlic onion green bell pepper red bell pepper and mushrooms; cook and stir until the onion has softened and turned translucent about 5 minutes. Season with salt and pepper. Push onion mixture to the side of the skillet and place the butter in the center of the skillet. Add calf's liver one slice at a time. Cover and cook until lightly browned flipping liver slices once 5 to 6 minutes. Cut liver slices in half.

Whisk together flour water and beef bouillon in a bowl until combined. Pour mixture into the skillet; cook and stir until gravy thickens then add red wine. Cook for 2 more minutes. Remove from heat and serve.