The best replacement for escarole is endive.

The best alternatives to escarole are rated as following:
★★★★★  endive
★★★★★  kale
★  chard
★  romaine lettuce
★  collard greens
★  green leaf lettuce
  swiss chard
  broccoli rabe
  chicory
  frisee
  curly endive

Your alternative for escarole is not listed? Suggest!
Speaking about escarole, one probably shouldn't forget about cannellini beans.

Other search terms related to escarole and their ratings are:
★★★★★ cannellini beans
You have in mind a companion for escarole and it is not yet here? Propose!



Google Trends

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escarole
endive
kale