Hilary Duff & Mike Comrie -- DINNER IN BEV HILLS ... After Singer Opens Door for Reconciliation

Former NHL star Mike Comrie had a family meal with his estranged wife and their son last night -- just a few months after Hilary Duff said there was a chance the couple could get back together.

Mike, Hilary and 2-year-old son Luca were all together at E. Baldi in Beverly Hills -- looking as friendly as ever.

Of course, the couple separated back in January after nearly 4 years of marriage -- but back in May, Hilary hinted that the relationship isn't completely dead.

"We make plans and we hang out," Hilary told Giuliana Rancic a few months ago. "And we don't know what our future looks like right now, but we're both doing really good and just figuring out what makes us happy."