Well the answer is Jesus is a muslim. The term muslim means a person or anything that submits itself to the will of God. And Jesus did that, therefore he is a muslim.
''He(Jesus) said: ''Verily I am a slave of Allah, He has given me the scripture and made me a Prophet;
''And He has made me blessed wheresoever I be, and has enjoined on me Salat (prayer), and Zakat (charity), as long as I live;
''And dutiful to my mother, and made me not arrogant, unblest.
''And Salam (peace) be upon me the day I was born, and the day I die, and the day I shall be raised alive!''
''Such is Isa (Jesus), son of Maryam (Mary). (it is) a statement of truth, about which they doubt (or dispute).''
''It befits not (the majesty of) Allah that He should beget a son. Glorified (and Exalted is He above all that they associate with Him). When He decrees a thing, He only says to it: ''Be!'' -and it is.''
''(Jesus said) : ''And verily Allah is my Lord and your Lord. So worship Him (Alone). That is the straight path.''
Qur'an 19: 30-36.