Lasagna with juice

1 lb ground beef 1 (6 ounce) can tomato paste 1 (28 ounce) can Italian-style diced tomatoes , drain but reserve juice 1 teaspoon salt 3/4 teaspoon pepper 1[...]

1 tablespoon olive oil 1 small onion , minced (about 1/2 cup) 1/8 teaspoon table salt or 1/4 teaspoon kosher salt , plus more to taste 2 garlic cloves ,[...]

1 tablespoon olive oil 1 small onion , minced (about 1/2 cup) 1/8 teaspoon table salt or 1/4 teaspoon kosher salt , plus more to taste 2 garlic cloves ,[...]