In a medium skillet brown ground beef. Drain and set aside to cool. In a large bowl mix cooked ground beef, onion, green pepper, jalapeno pepper, soft bread crumbs, egg, parsley, basil, Italian seasoning, salt, and pepper.
Mix in one can of tomato sauce. Stir in tomatoes.
Cut each zucchini in half lengthwise. Scoop out the center of each zucchini half to about ¼ inch from the edges.
Fill each zucchini half with the meat mixture and place in two 13×9” baking dishes. Spoon the other can of tomato sauce over the top of each zucchini half.
Bake uncovered at 350 degrees for 45 minutes to 1 hour or until zucchini have reached your desired tenderness.
During the last few minutes of baking top each zucchini half with mozzarella cheese.