Hello how may I help you? Can you help me with my pizza order? I sure can! Which restaurant are you interested in ordering from? Domino's What would you like to order from Domino's? Do they have mushroom toppings over there? Unfortunately, the mushroom topping pizza is not available. So what can you advice me to substitute with that toppings? Spinach or tomato are some other options for toppings. I love those. Thanks for the suggestions. I'm glad I could help!