Combine butter substitute, hazelnuts, lemon zest and 1/2 tsp salt in a small bowl. Stir to blend.
Add remaining salt to water and bring to a boil. Add green beans and cook about 3 minutes until bright green. Drain. Return to pan and add butter mixture. Cook about 2-3 minutes more until butter melts. Toss gently, and serve.
(adapted from Cooking Light Magazine)
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