Steam the potatoes in a steamer until tender, about 10-12 minutes.

Remove from heat and let cool slightly.

In a large bowl, combine the steamed potatoes with the sliced mushrooms, tomatoes, zucchini, cauliflower, and broccoli florets.

In a separate small bowl, whisk together the lemon juice, minced onion, minced garlic, dried oregano, Bragg Liquid Aminos, and olive oil to make the dressing.

Season with salt and pepper to taste.

Pour the lemon herb dressing over the mixed vegetables in the large bowl.

Gently toss until all the vegetables are evenly coated with the dressing.

Cover the bowl and refrigerate for at least 1 hour to allow the flavors to meld and the vegetables to chill.

Before serving, give the veggie combo a gentle stir.

Serve chilled as a refreshing main course or side dish.