Some of those protein or meal replacement bars are not much better than a candy bar. I'd look for something that is made of whole foods if possible but ideally make your own.
I make a large batch of fruit smoothies on the weekend using fresh fruits and veggies and then eat some whole grain cereal with it.
If I buy any bars I go for the ones with less than 10 ingredients and those have to be natural ingredients. The people who make Cliff also make a bar called Kit's organic. There are usually around 6 ingredients all fruits and nuts.
Here's an example:
Organic Dates, Organic Almonds, Organic Barberries, Organic Bilberries, Sea Salt.
and a bar called Perfectly Simply:
Peanut Butter (Peanuts), Cane Syrup, Soy Protein Isolate, Date Paste, Gluten-Free Rolled Oats, and Coconut.