In a Dutch oven, add water and chicken broth, bring to a boil.
Add potatoes to the pot and cook 10 minutes, over medium heat. Potatoes should be tender but not fully cooked.
Meanwhile, in a large skillet, heat 1 tsp oil and 1 Tbsp butter.
Add chicken and saute 2-3 minutes. Lightly season with salt and pepper. Once cooked, add to the potatoes in Dutch oven.
In the same skillet, add mushrooms and 1 tsp oil. Saute mushrooms until browned, lightly season with salt and pepper. Add mushrooms to Dutch oven.
In the same skillet, add carrots and onions and 1 Tbsp butter. Saute over medium heat until carrots are tender, stirring as needed. Add minced garlic and stir. Transfer everything to a Dutch oven.