This thread inspired me to check out frozen meals for lunch today. I bought a Healthy Choice Max Protein Bowl for $4.50. The "Max" indicates that it's bigger than their other bowls, but at 450 calories I wouldn't consider it a large meal.
The nutrition profile is pretty good, with only 2g of saturated fat, 570mg of sodium, 53g carbs, 9g fiber, 13g added sugar. I think it's brilliant that they added 1,200 mg of potassium in lieu of sodium.
Compared to other frozen meals I've tried, I'd give it a 10/10 for the combination of value, nutrition, and taste. Of course it doesn't compare to a fresh meal, but I was very pleasantly surprised. As someone who tends to spend around $30/day on food, I'll probably start incorporating more of these meals.