To make the dressing, grind whole flax seeds, if necessary, in a spice grinder. Then add all the dressing ingredients to a blender or food processor. Blend the dressing until smooth. Set aside to let the dressing thicken.
Heat a medium saucepan over medium heat. Add the diced onions and jalapenos. Cook the veggies for 2-3 minutes until they begin to soften.
Add the garlic, cumin, chili powder, oregano, and garlic powder and stir to combine everything.
Stir in the tomato sauce, maple syrup, and lime juice, then add the bulgur and water.
Mix everything and bring the ingredients to a low simmer. Cover the pot and cook the bulgur for 15 minutes until it is tender. Check after 10 minutes and give it a stir or add more water if necessary.
To make the bowls, divide the bulgur, beans, corn, lettuce, tomatoes, avocados, black olives, and other toppings into 4 portions in individual bowls. Serve the dressing on the side.