Heat 1 tbsp oil. Add onion rings with 1 tbsp Worcester sauce, 1 tbsp soya sauce and 1 tbsp brown sugar. Cook for 2 minutes and removed. Marinate chicken breast with salt, pepper, garlic, vinegar and Worcester sauce. Now grill for 5 minutes. Remove. Cut spinach finely and mix with mayonnaise cream cheese and chicken.
Cut bread from centre, spread filling on to bread, cover with bread and grill till done. Cut into triangular pieces and serve.