Cut 1 bell pepper, 2 zucchini, and 1/2 onion into small pieces.
Blend 1/2 bell pepper with 100 ml cream, 1 tablespoon cream cheese, and 70 ml vegetable stock using an immersion blender until smooth; set sauce aside.
Heat 1 tablespoon olive oil in a pan over medium-high heat, add the cut vegetables, and sauté for 5-8 minutes until tender.
Pour the cream sauce over the vegetables, reduce heat to low, and simmer for 10-15 minutes until the sauce thickens.
While the vegetables cook, season the 2 chicken breasts generously with Maggi No. 3, salt, and pepper.
Heat 1 tablespoon olive oil in another pan over medium-high heat, then fry the chicken breasts for 6-8 minutes per side until golden and cooked through (internal temperature 74°C / 165°F).
Serve the chicken breasts with the creamy pepper and vegetable sauce.