Fresh vegetables deserve to be cut with a beauty blade like this Sugimori 165mm Nakiri. They will thank you later, trust me. And while you're getting your veggie on, check out Power Vegetables from Lucky Peach, it will help you keep that Nakiri busy. 

About the Shape - A Nakiri is a vegetable knife. Underutilized in the Western kitchen, the Nakiri’s flat blade is meant for the push/pull chopping of vegetables. Since the entire flat edge of the knife kisses the cutting board at once, you wont be turning the vegetable into an accordion. Accordion vegetables are still connected like a paper doll after you're “done” cutting them. To truly understand the awesomeness of a Nakiri we recommend making onion soup your first night with the knife. The ease of chopping will blow you away.