The Thanksgiving Door by Debby Atwell*

Elderly Ed and Ann are alone for Thanksgiving.  Ann burns their dinner and retreats into her ironing.  When Ed suggests they check out a new restaurant down the street, Ann is not too thrilled.
Their day takes a surprising turn for the better as they interact with a different culture group. . . the restaurant owners and their family members learn about the heart of Thanksgiving.
*Highly recommend.
Strategy: inferring