Denise Richards & Charlie Sheen's Big, Happy Family

It was only a year ago that the often ugly details of Denise Richards and Charlie Sheen's divorce were making headlines, but Denise says that she and her ex have now moved on for the sake of their daughters Sam, 5, and Lola, 3.

"Believe it or not, we had dinner together with all of us," Denise, 38, reveals. "So I love that... It's important for our daughters to see us get along and to be able to be in the same room."

Charlie's wife Brooke Mueller, who gave birth to twins Max and Bob in March, also joined in on the family dinner. Though Denise admits that her divorce from Charlie was "very public and it got very nasty," she says that her relationship with Brooke, 31, has always been good.

"Brooke and I have always gotten along, so obviously when we went through what we were all going through it was what it was. But I think she's great with my girls. They love her."

Denise says that life is a lot easier now that she and Charlie, 43, have found a way to get along.

"We've worked very hard to get it to this place, and I'm so grateful for it. I think it's important for, you know... It's a lot less stress, it's a lot less money, that we get along."

Denise and Charlie divorced in 2006 after 5 years of marriage.