2 tbsp. oil
2 lbs. ground chuck
2 to 3 lg. zucchini
1 c. Provolone cheese, shredded
1 c. Mozzarella cheese, shredded
2 c. spaghetti sauce, more or less

Preheat oven to 350 degrees. Butter a 9 x 13 inch baking dish. Heat oil in a large skillet. Add meat and brown very well, breaking meat up with a spoon. Drain any accumulated fat. Spoon into prepared baking dish. Clean zucchini and cut into 1/4 inch thick slices lengthwise. Layer zucchini over meat. Sprinkle cheeses over zucchini. Pour sauce over all. Bake for 20 to 30 minutes. Let cool for 15 minutes. Cut and serve.