Luckily, he realizes that he does have the ingredients to make spaghetti. "A-ha!" he exclaims. "If I could just find the right reduction, I could show that making lasagna is no harder than making spaghetti." That way, he doesn't need to worry about the missing ingredient.
On the other hand, he thinks of all the work he has done already today. "Or I could just go to the grocery store."
Where does Bruno go next?