Food Safety Report: sweetgreen, Kensington Park Drive, Tustin, CA, USA 9 months ago • details 93 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills, Headache Suspected source: Sweetgreen salad. Miso salmon Onset: Less than 4 hours Duration: Several days