Cheesy Fiesta Chicken Casserole

Ingredients

• 2 tablespoons olive oil
• 1 teaspoon black pepper
• 1 medium red onion
• 1/4 cup chopped cilantro
• 2 teaspoons salt
• 1 cup salsa
• 1 lb boneless skinless chicken breast
• 2 teaspoons dried oregano
• 1 tablespoon ground cumin
• 1/4 cup heavy cream
• 1/2 cup sour cream
• 1 red bell pepper
• 1 cup shredded pepper jack cheese
• 1 tablespoon chili powder