Paleo Poached Whitefish in Tomato-Fennel Broth Recipe

Heat olive oil in a skillet over medium heat. Stir in fennel bulbs and onion; cook and stir until the onion has softened and turned translucent about 5 minutes. Add whitefish saffron fennel seeds tomatoes and water. Bring to a boil cover and remove from heat. Let sit covered until fish flakes easily with a fork about 10 minutes.