Heat the olive oil in a medium pot over medium-high heat.
Add the diced red onion and green bell pepper, sautéing for 3-4 minutes until the vegetables begin to soften.
Add the ground turkey to the pot, breaking it up with a wooden spoon, and cook until browned and no longer pink.
Stir in the minced garlic, chili powder, cumin, sea salt, and black pepper, cooking for 1 minute until fragrant.
Pour in the crushed tomatoes, rinsed kidney beans, and water, stirring well to combine.
Bring the mixture to a gentle boil, then reduce the heat to low and simmer uncovered for 15-20 minutes until the chili has thickened and the flavors are well developed.
Serve hot in a bowl, optionally garnished with fresh herbs if desired.