Don't understand the issue -- (a) TurboTax instructions were not explicit enough ( always can be improved for sure) or (b) your printed return is not fileable as is or (c) you just want to correct your unfiled return or (d) what?
Note that this topic has been discussed manytimes on this board. Also (a) as a married person you have only two ways to file ( absent any dependents living with you for whom you are maintaining an abode) -- MFJ and MFS. Both of these require the details of your spouse. ITIN application is only useful if you are filing MFJ --- but this also means that both your world incomes come under the purview of the US taxation ( Federal for sure and the State would also want its cut ). There are quite a few other ands, ifs and buts involved and your own immigration status is important ( US citizen/ resident / resident for tax purposes and sometimes the type of visa-- if applicable ). If this is your first year a US tax return with a non-resident spouse, you may want to consider getting professional advice. If you have specific questions , you can add these in comment and one of us should be able to help you
