Love lots of vegetables but (raw) spinach is disgusting and salad mix makers who put spinach in mesclun green mixes should be put in stocks and pelted with rotten spinach.
It leaves a coating on the teeth that feels terrible and the flavor throws off the flavor of a salad in a weird way - the salad feels too vinegar-y. Spinach is better in its own salad where the flavors are set to match its weird profile.https://www.popsugar.com/fitness/What-Causes-Spinach-Teeth-551249 …