I want to grill some tomatoes on my grill pan for my breakfast-for-dinner (also serving bacon and ricotta hotcakes with mango!). I'm going for that wonderfully greasy spoon kind of grilled tomato, diner-style :) Should I cut into thick circles or lengthwise? I was just going to brush with a little olive oil and grind on some S and P and toss on grill. Anything I'm missing? Abt how long should I grill on each side? Medium high heat good?