Spaghetti Sauce with Zucchini

Very easy...
Brown hamburger, put in slow cooker. Add diced zucchini, onion to pan, season with crushed fennel seed, red pepper flakes, oregano, salt, pepper. Cook, deglazing pan with some water to bring up the browned bits on the pan. Add to slow cooker. Add on can/jar of your favorite spaghetti sauce (we like 4 cheese, you know, the can usually found on the bottom shelf for .99), add a small package of mini-pepperoni (or regular, diced).
I left it in the slow-cooker all afternoon. Added parmesan cheese and a bit of pasta water toward the end to thicken.
Served with pasta, home made bread, salad.