Tina Fey's husband, Jeff Richmond, knows easy methods to his spouse's center is . . . a cheeseburger.

At the October 3 bash for 30 Rock's final season, the show's composer, 51, secured a sales space at NYC's Isola and a snack for the actress, 42.

"He put a centerpiece in front of her so she could eat privately," says a visitor.

But for Fey, her partner of eleven years is more than only a chivalrous escort.

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"He stimulates her mind," every other source tells Us Weekly of the couple, who proportion daughters Alice, 7, and Penelope, 14 months. "They could talk for days."

Now that 30 Rock's creator and megastar is wrapping up her paintings on the display, she and Richmond are extremely joyful they'll have extra time to spend with every other — and their little women.

"They are all about family now and they love being together," a 2nd insider stocks. "They never stop having fun."

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