Add the vegetable cube to the boiling water and set aside to dissolve to a broth. In a large and deep skillet, add 1 tablespoon of olive oil and saute the onion. Add the chicken and cook until browned. Remove the chicken from the skillet and keep aside. Add the zucchini, carrots and vegetable powder to the skillet and saute for 3-4 minutes until browned. Add the orzo and vegetable broth and simmer for 5 minutes. Return the chicken to the skillet, add the broccoli and peas and cook until all water has been absorbed. If the orzo is still not cooked, add more water and continue to simmer on low heat until cooked.