Cook the pasta in salted boiling water to package instructions until al dente. Strain and toss with about 1/3 of the tomato sauce. You want it to be somewhat on the dryer side.
Slice the sausages into small half moons. You can also cut the meatballs a little if you want, but I didn't.
Preheat the oven to 400
Brush 4 oven safe bowls with butter. Press three slices of bread into the bowl to form a bread bowl. Add 2 slices of cheese. Add in some pasta and the meatballs and sausage. Add more cheese on top. Press the pasta in as best as you can and overstuff it with pasta to help the bread get thin on the bottom and the bread to pasta ratio be better.
Brush more butter on the edges and press a 4th slice of bread on top. Try your best to tuck it in with the other bread. I was very unsure as I was doing this and thought it was not going to work, but it actually stuck and sealed very well. Brush a little more butter on top
Bake for 30 minutes.
While it is baking, make the butter mixture by melting the butter and mixing all the ingredients into the butter.
Remove the timpanos from the oven and turn the oven to 450.
One by one, flip the timpano out of the bowl so they are free standing on the baking sheet. Brush them liberally with the butter mixture all around.
Bake 15 minutes
Split the remaining tomato sauce among 4 plates. Serve the garlic bread timpanos on top of the sauce.