Friday Night Dinner: Baked Cod & Potatoes with Horseradish Cream & Orange-Olive Salad

So, on the fish, it's not really a cream sauce per se. I was intrigued/concerned with the idea of baking mayonnaise in a sauce, but, this worked well. I used some fancy-pants mayonnaise made with olive oil. La de da! Okay, so I also found the fabled horseradish mustard called for in the recipe at …