Hamburger Hot Dish 2 tablespoons olive oil 3 medium zucchini, halved lengthwise, then thinly sliced 12 ounces lean ground beef 1 1/2 cups chopped onions 1 tablespoon minced garlic 28 oz can crushed tomatoes, undrained 1/2 teaspoon Italian seasoning 1/2 teaspoon salt 2 cups milk 1/4 cup flour 1 1/2
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