Mena Suvari Divorce -- Broke Ex Wants Spousal Support

Mena Suvari's soon-to-be ex-husband is an admitted business failure ... so he wants Mena to fork over a whopping $17,000/month in spousal support as part of their divorce ... TMZ has learned.

According to court docs filed earlier this week, Simone Sestito claims he has "negative balances" on all his personal and business accounts and has been forced to pay his bills with credit cards and loans from his parents.

Sestito claims Mena makes $750,000/year, which includes a terrible Captain Morgan ad campaign she did that netted her $225,000.

Sestito claims he got used to eating out "almost everyday at high end restaurants" and lists his estimated monthly eating out expense as a whopping $3,000/month. A Happy Meal every once in a while wouldn't hurt!

Sestito is looking for $17,151/month in spousal support, plus an additional $10k for attorney fees.

A judge has yet to rule.

Mena's lawyer, Mark Gross, tells TMZ ... "It is unfortunate that Simone has chosen the spotlight of litigation over the privacy of mediation."