I'll start off by saying this is my Moms recipe (ladyluck) but I thought I'd post it while I was on here. Very Tastey!!!
Cut however many zucchini's you are going to use in half length wise. With a spoon scoop a shallow dip in the centre of each zucchini half.
Fry up some hamburger meat. You can add diced onions, mushrooms, peppers is you like, I didn't have time.
Add a generous amount of chili powder and garlic.
Add the lowest carb pasta/tomato sauce you can find. Just enough to wet the meat, dont make it too saucy. I think she used 1 cup for 1 package of hamburger meat. Handful of cheese mixed in to help it stick.
Stuff the zuchinni boats with the hamburger meat, sprinkle cheese on top (I used the pre-shredded nacho mix bag of cheese)
Bake in oven at 365 for 30-40 mins.
Sprinkle with some parm cheese if you'd like. Makes a great lunch or dinner! Leftovers good to. Made them for a family get together yesterday and everyone loved them.