My mom found a great meal replacement - Kroger CARBmaster yogurt! They taste really good and are only $0.41 a piece! The nutrition values are different depending on which flavor you get. You could even count 2 yogurts as 1 meal. Or eat just 1 for a meal if you need to balance out a higher calories item, like a homemade bar.
80 calories, 1.5 g fat, 3 g carbs, 12 g protein
Peach, Strawberry Banana, Blackberry, Cherry
60 calories, 1.5 g fat, 4 g carbs, 9 g protein
Strawberry Colada, Raspberry Yumberry, Vanilla, Vanilla Chai, Carrot Cake