1Begin by heating the olive oil in a large skillet over medium heat.
Add the chopped onion and sauté until it becomes translucent, about 3-4 minutes.
Add the minced garlic and continue to sauté for another minute until fragrant.
Increase the heat to medium-high and add the chicken breast pieces to the skillet.
Cook the chicken for about 5-7 minutes, stirring occasionally, until it is browned on all sides.
Add the sliced mushrooms to the skillet and cook for another 3-4 minutes until they are tender.
Stir in the chili paste, ensuring that the chicken and mushrooms are well coated.
Reduce the heat to low and let the mixture simmer for an additional 2-3 minutes to allow the flavors to meld.
Taste and adjust seasoning if necessary, then serve hot.