Natalie Portman and fiance Benjamin Millepied brought their 7-month-old son Aleph to a farmer's market in Los Feliz Saturday -- Baby Bjorn and all!

The beautiful actress and her dancer baby daddy maintain healthy eating habits with fresh, organic produce and it looks like Nat even picked up some veggies for a homemade baby food puree!

Portman is reportedly set to produce a documentary about veganism based on Jonathan Safran Foer's food manifesto Eating Animals. Natalie has he own production company, Handsomecharlie Films, which she started in 2007. Looks like she'll pass on her eating habits to her son ...

The couple strolled the market and took turns carrying Aleph. Our photographer tells us: "Natalie and Ben were so relaxed and really enjoying the sunny LA weather. Their baby was so calm. They seem like lucky parents!"