Added support for more ingredient variations

Some Examples include:
salt to taste
1 large onion, chopped
1/2 pound smoked sausage (such as Conecuh©), cut into 1/4-inch thick slices
1 pound peeled and deveined medium shrimp (30-40 per pound)
1 Tablespoon, 1 teaspoon cumin
1 Tablespoon and 1 teaspoon cumin
1 Tablespoon, 1 teaspoon, and 1 teaspoon cumin
2 (6 inch) tortillas