Heat the extra virgin olive oil in a medium saucepan over medium-high heat.
Add the ground turkey, diced onion, and diced bell pepper to the pan, breaking up the turkey with a wooden spoon until browned and vegetables are softened.
Stir in the chili powder, ground cumin, garlic powder, sea salt, and black pepper, toasting the spices for 1 minute until fragrant.
Add the dry amaranth, rinsed black beans, tomato puree, and water to the pot, stirring well to combine.
Bring the mixture to a gentle boil, then reduce the heat to low and cover with a lid.
Simmer for 20 to 25 minutes, stirring occasionally to prevent sticking, until the amaranth is tender and the chili has reached a thick, stew-like consistency.
Remove from heat and let sit for 5 minutes before serving to allow the flavors to meld.