NOYB wrote:

NO! No bell peppers in spaghetti sauce. Ever.

Why no bell peppers?

They overpower the sauce. Bell peppers have a unique, somewhat sweet flavor
that lends itself well to sausage and peppers, and fajitas. But not
spaghetti sauce.

With spaghetti sauce, you ought to taste the tomatoes, garlic, and basil.
The extras like pancetta and onions, when done in small amounts, help to
bring out the flavor without overpowering it. Bell peppers overpower
everything.

Well, I must disagree with you on the bell peppers. When cut into 3/4" x
3" strips, they add a textural element to the dish. Remember, this
recipe calls for large element chunks. The large mushrooms, large
olives, and bell peppers pieces each add their own special 'bite' to
this dish. Together, this recipe seems better than its component parts.
They do work together. Give it a try.

--
Skipper