What's your favorite spaghetti sauce recipe?

I have a spaghetti sauce recipe (with chicken, mushrooms, Italian seasonings) but wanted to know if anyone out there had a great recipe that they could share. I'm looking to expand my horizons on this a bit.

Hi,

2 lbs. ground beef (or turkey or fake meat!)
1 med. onion, finely chopped
1 green pepper, finely chopped
2 (15 oz. each) cans tomato sauce
2 (12 oz. each) cans tomato paste
1 (7 1/2 oz.) can pitted ripe olives, drained and sliced
2 (1 1/2 oz. each) env. Italian style spaghetti sauce mix with mushrooms
3 c. water
1 tbsp. sugar
1 tsp. oregano leaves
2 cloves garlic, crushed
1 bay leaf, crumbled
16 oz. Italian style spaghetti
Grated Parmesan cheese

Cook and stir meat, onion and pepper until meat is brown and onion is tender. Stir in remaining ingredients except spaghetti and Parmesan cheese. Cover; simmer 1 1/2 hours, stirring occasionally. Cook spaghetti as directed on package; drain. Serve meat sauce over hot spaghetti; add Parmesan cheese. 8 servings.

Any combined home made spa. sauce... It's the best one that's made also fresh lol

alfredo sauce:

1 cup whipping cream
about 1 cup of parmasian cheese or romano or ausagio
and about half a stick of butter

mix it all together on the stove on low heat.
whip together with whisk untill it is totaly liquid meaning no cheese comes up on the whisk when you lift it out of the sauce

it will thicken up after awhile and it is wonderful =)