Maybe low the amount of lemon juice and add honey instead.

3 tbs fresh lemon juice 1/3 c extra-virgin olive oil salt and pepper 1 (12 oz) jar of artichoke hearts (packed in water or oil), drained and roughly chopped 10 oz mixed greens

1. In a medium bowl, whisk together the lemon juice, oil, 1/2 tsp salt, and 1/4 tsp pepper. Stir in artichokes.
2. Divide the greens among individual plates and top with vinaigrette.