Place bacon in a large skillet and cook over medium-high heat, turning occasionally, until evenly browned, about 10 minutes. Remove bacon slices and drain on paper towels. When cool enough to handle, chop bacon into 1-inch pieces.

Add chicken, bell pepper, green onion, and bacon to the skillet. Reduce heat to medium-low and cook until bell pepper has softened and chicken is heated through, 7 to 10 minutes. Season with salt and pepper to taste.