Baked Ziti

This turned out really wonderful!  It had a great flavor and everyone ate it up.

Baked Ziti
by Marci Coombs

1 pound ziti
1 onion
1pound ground beef or sausage - I might use 1/2 and 1/2
2 jars spaghetti sauce
6 oz. sliced provolone cheese
1 1/2 cups sour cream
6-9 ounces grated mozzarella cheese
2 Tbsp. grated parmesan cheese

Preheat oven to 350. Boil pasta 8-10 minutes. Brown hamburger and onion and then add the spaghetti sauce. Use a 10 x 13 dish and layer as follows: Half the pasta, all the provolone, all of the sour cream, half the sauce mixture, remaining pasta, all of the mozzarella, and the remaining sauce mixture. Top with parmesan cheese. Bake for 30 minutes covered with tin foil and then 10-15 more minutes uncovered...until cheese is bubbly.