I am guessing by hot oven you mean a preheated oven. Preheating is always done no matter what your cooking or baking, the reason for that is the time it takes to get an oven up to temp, your not going to put your product, especially during baking, into an oven that is trying to get to temp, because the temp changes affect the product your baking or cooking.
Old cookbooks (my grandmother's Settlement House Cookbook from 1910, for example) did not give oven temperatures in degrees. They would tell you to bake something in a "slow", "moderate", or "hot" oven. It was assumed that you knew what this meant. I'm baking cookies from that book now and had to Google what a "hot" oven meant. It seems to equal about 400 to 500 degrees. A "slow" oven is 300 degrees, A "moderate" oven is 350 degrees.
You typically need to cook frozen lasagna in the oven for about 1.5 to 2 hours at 375F.
If the tornadoes are frozen ready-to-cook, they need to be cooked until they are 161°F inside (there are special heat-and serve grills made for these tortillas).
To cook butternut squash in the oven, you typically need to bake it for about 45-50 minutes at 400F.
You should cook a Tombstone pizza in the oven for about 18-20 minutes at 400F.
You should cook pizza rolls in the oven for about 10-12 minutes at 425F.
To cook squash in the oven, you typically need to bake it for about 30-45 minutes at 400F, depending on the size and type of squash.
If you set your oven to 280 degrees, you need to cook it for 4 hours. If you set your oven to 140 degrees, you need to cook it for 8 hours.
You should cook homemade frozen lasagna in the oven for about 1.5 to 2 hours at 375F.
To cook an arm roast in the oven, you typically need to cook it for about 2.5 to 3 hours at 325F until it reaches an internal temperature of 145F for medium-rare or 160F for medium.
You should cook ribs in the oven at 225 degrees Fahrenheit for about 3 to 4 hours.
Ribs cooked at 200 degrees Fahrenheit in the oven typically need to cook for about 4-6 hours to become tender and fully cooked.
No, it just makes it more sour. You need an oven to cook it.