Fill medium pot with water and bring to a boil. Add 2-3tsp salt and pealed, chopped potatoes. Lower to simmer and let boil for 10-15 minutes or until potatoes are tender.
Strain out water, add butter, 1 tsp garlic and milk and mash until smooth.
While potatoes are boiling, heat a medium dutch oven on stove top. Drizzle oil and add onion, ground bison, garlic, red pepper flake, salt and pepper. Break up with wooden spoon and cook until no longer pink. (See NOTE)
Remove from heat. Add condensed tomato soup and mix.
Layer frozen vegetables on top of meat
Layer mashed potatoes on vegetables
Top with grated cheese and chopped fresh parsley
Cover and bake at 350°F for 30 minutes
Uncover and broil another 5 minutes or until cheese is bubbling.
Remove from oven, let sit for 5 minutes and serve.
Serve with hot sauce or sweet and spicy sauce if desired!