Add 1 cup quinoa and 2 1/4 cups water to a pot, cover and bring to a boil. Once boiling, reduce heat to low. Keep covered and simmer for 20 minutes, or until water is evaporated and quinoa is fluffy.
Prepare the Greek Dressing by adding all ingredients to a blender or food processor. Mix until well blended & creamy. Transfer to storage container and set aside in refrigerator.
Wash bell pepper & zucchini. Cut the zucchini in half lengthwise, then dice into 1/2 inch half moon shapes. Dice the bell pepper & onion.
Add 2 tablespoons of avocado oil to a large saute pan at medium heat. Once heated, add the diced onions and pepper. Saute until onions begin to become translucent. Add the diced zucchini to the saute pan and season with salt, pepper, garlic powder & cayenne pepper. Toss with a rubber spatula to coat evenly. Continue to stir veggies to cook evenly. Once the zucchini's begin to brown turn heat to low and let cook for 1 more minute. Then turn off heat and set pan aside.
Slice the cherry tomatoes in half lengthwise and set aside.
Cut the cucumber is half lengthwise. Then flip to rest flat side face down on cutting board, slice in half length wise again. Line the quartered cucumber pieces side by side and cut into diced triangular pieces. Set aside.