Cha bar and chaayos and chai point are best for morning breakfast
Jantar Mantar South Indian Food in Janpath.
Hira Sweets and Chaayos are some great options in this area
You can try Naivedyam and Diet Kitchen in Patel Chowk for a good brekky.
Salad story in Khan market..
Sarvana bhawan at CP
Digging at chankyapuri