This salmon and orzo recipe works best in an oven-proof skillet, but you can transfer to a casserole dish if you don't have one. If you can’t find gluten-free orzo, you can always use another small shape like elbows or even white rice in a pinch. To make this low FODMAP, simply omit the garlic and shallot, and use LF chicken stock or water. You can sub frozen or fresh kale for the spinach, or even add additional veggies like frozen peas or artichoke hearts.