From restaurant chains to grocery shelves

Here's a trend lesson I learned from Chicken McNuggets: when a new food gets popular in a restaurant, consumer packaged goods soon follow. That's not true the other way around. Three of today's examples are 1. burritos 2. ready-to-drink specialty coffees 3. smoothies. Restaurants benefit from quick feedback--especially quick-serve restaurants. Which came first, the Happy Meal or the Lunchable?