Measure Quinoa and cook them as per direction. Let it cool completely.
Simultaneously, Mix the Ground flax with water in a bowl, and keep it aside.

Now, if you do not have oat flour, you can make it at home. Grind Quick oats in a grinder and measure the desired quantity.

Now, in a nonstick pan heat 1 Tablespoon of oil. Once hot, add finely chopped onions. In a minute or two add bell pepper, Jalapeno peppers. Cook until onions are translucent. Once everything cooked turn the heat off.

Now, in a big mixing bowl add quinoa, onion mixture that prepare earlier, Flax eggs, mashed potatoes and all the spices. Mix everything well.

If the mixture is not firm in texture and difficult to make a patty, then add bread crumbs. It will help to bind the mixture.

Now, form burger patties depending on desired size and shape. Keep them in refrigerator for at least 30 minutes.

Preheat Oven to 375 F. Grease the baking sheet.

After 30 minutes, place all the patties on greased baking sheet, bake for 20 minutes. Flip and again bake them for 20-30 more minutes or until it browned.

Serve them on Hamburger bun or Kaiser roll with your favorite dressings or toppings.
These patties can be stored in airtight container or in Ziploc bags for a week in refrigerator.