Here is a dish which can be the main part of a meal or a side dish, and it is friendly to most of the special diets. It is gluten-free, dairy-free, sugar-free, vegan, can be made nut-free by skipping the garnish, and it has lots of vegetables. Basically, it is awesome. And good for you.
Adapted from this recipe
1 cup quinoa
2 cups water or broth
1/2 of a yellow onion, diced
1-2 cloves garlic, minced
1 stalk of celery, diced
1 half of a cucumber, peeled, seeded, and chopped
1/4 cup lemon juice
3 Tbs olive oil
1 1/2 tsp Italian seasoning
1 1/2 tsp dried oregano or basil
salt and pepper to taste
chopped almonds to garnish, if desired
Rinse the quinoa in a sieve for a minute. This gets rid of the bitter taste from the quinoa. Put the quinoa and water or broth in a pan, and bring to a boil. Reduce heat and cook until the quinoa is done, about twenty minutes.
Meanwhile, chop and peel vegetables as required. If you do not like the flavor of raw onion, sautee it in olive oil over medium heat for ~5 minutes, I did.
When the quinoa is done, mix in the vegetables, oil, lemon juice and spices. Garnish with nuts if you so desire.
If I'd had fresh mint or basil and tomatoes I totally would have added them! It is good warm or cold.