Foil is your friend.
If you're roasting something, wrap it in foil. It will cook faster and you'll have less cleanup.

If you're baking, use a foil pan, it will rise higher. The foil reflects the heat. My mom learned that baking bread for the church bazaar. You can re use foil baking pans, more than once, so it isn't that expensive.

Oh, and my famous sausage roll recipe.

1. Buy really good sausages
2. Buy prepared crescent rolls.
3. Microwave the sausages for a minute
4. Wrap the sausages in crescent rolls and bake at 400 for maybe 10 minutes. (Hint, do not check your email while making sausage rolls.)

These are a big hit at local bake sales, especially at my local library. They're at their best served warm, and of course more fragrant, which means they sell better.