The MRE Rick (Andrew Lincoln) offers to Michonne (Danai Gurira) is the famous Mac and Chili and it is widely regarded as the best and most popular MRE by most US soldiers and marines.
Rick's (Andrew Lincoln) iconic weapon of choice is his Colt Python which has been Rick's trademark ever since season 1. In this episode, Rick fires the weapon for the first time since the 15th episode of season 6, East (2016).
The part where Rick (Andrew Lincoln) sees the 2 men playing golf, you can hear them say "DEAD WEIGHT" - this is a reference to episode 4.7, Dead Weight (2013), and the Governor(David Morrissey) and Martinez (Jose Pablo Cantillo) playing golf.
2nd episode of Season 7 to feature only two male cast members (Andrew Lincoln, Seth Gilliam). The first was episode 7.6, Swear (2016), featuring only Josh McDermitt and Corey Hawkins.