Butternut Squash and Tomato Gratin without onion

1 -2 medium butternut squash 2 tablespoons olive oil 2 (14 ounce) cans diced canned tomatoes (plain or with basil, oregano) 2 cups cheddar cheese , shredded 1[...]

2 cups butternut squash 1 (10 1/2 ounce) can condensed tomato soup 2 cups skim milk 1 teaspoon salt 1 teaspoon pepper 1 teaspoon rosemary 1 Add can of tomato[...]