Amazon offers Prime members the Rubbermaid Balance Meal Kit in Beet Red for $14.52 with free shipping. (It's available in Citron for cents more.) That's $5 off and the lowest price we could find. This 11-piece set features four portion-control containers with a carrying box.

Buying more than one? Sam's Club offers its members a 2-Pack for $24.98 with free shipping. (Non-members pay an additional $2.50.)

Update: The price has increased for Beet Red; however, Citron is still $14.69.