Definition: In this task, you're given a context passage, followed by a question that needs to be answered. Based on the paragraph, you must write unambiguous answers to the questions and your answer must refer to a specific phrase from the paragraph. If multiple answers seem to exist, write the answer that is the most plausible.
Input: Last night, I cooked dinner at home for my partner and I. One of my favorite dinners to prepare is lasagna. First, I preheated the oven. Then, I mixed up the filling for the lasagna. The filling contained ricotta cheese, one egg, mozzarella cheese, parmesan cheese, spinach, and salt and pepper. Then I got a glass casserole dish from my cupboard and coated it with cooking spray so that the food would not stick to it. I then put a layer of tomato sauce on the bottom of the dish. Next I put the dry lasagna noodles and a layer of the cheese mixture I made. I then repeated these steps until the dish was full. I put extra mozzarella cheese on top. I poured a cup of water around the edges of the dish so that the noodles would soak up this liquid while they cooked. I then put the dish in the oven and set a timer for one hour. When the timer went off, I checked on the lasagna. It was ready. My partner and I ate it for dinner and it was delicious. 
Question: Where was the food prepared?
Output:
KITCHEN