Bowls are in. Panera, Chipotle, Sweetgreen, and countless other eateries have jumped on the meal-in-a-bowl wagon. So why not the freezer case? The good news: a typical bowl is mostly plants. Many offer whole grains, veggies, beans or another protein, sauce, and maybe nuts or seeds. That often means more fiber, potassium, and unsaturated fat—and less refined grain, salt, and cheese—than typical frozen entrées. Here’s a guide to the best.