Solanum lycopersicum 'Red Beefsteak'

1 of 5 Tomato bunches. Left out overnight 25-35F for 3 consecutive nights. Slight purple evident in stems and ~50% of leaves. #Nutrient suggestions to get them going properly again?

Cut away the offending damage and leave the green. If there's green in spring then it should recover just fine. Once it's fully recovered, you may proceed with your regular fertilizer treatments.