[header] How to make stuffed zucchini [title] Preheat your oven to 350ºf (175ºc). [title] Cook the beef. [step] Place some olive oil on a skillet and cook and stir the ground beef until it's nice and browned, for about 10 minutes. 
You can break up the beef as it crumbles while it cooks. Drain the extra fat from the beef and move it to a mixing bowl, using a slotted spoon.