Step 2
Preheat oven to 400℉. In a large skillet, heat olive oil over med-high heat. Add onions, garlic, celery, carrots, salt, and pepper, sauteing for 4-5 minutes until softened. Add flour and mix well. Add chicken broth, bringing to a boil and letting the mixture thicken. Stir in chicken and peas, then remove from heat.