Preheat oven to 425 degrees Fahrenheit

Slice cauliflower lengthwise, into "steaks".

Combine soy sauce, pineapple juice, molasses, ginger, dry mustard, and garlic in a glass dish.

Marinate cauliflower by placing in the dish and soaking for about 5 minutes.

Remove cauliflower from marinade and arrange on a broiling pan.

Cook at 425 for 10  minutes. flip over and cook 5 more.

Serve with pineapple!