In medium bowl combine bacon, lettuce, crumbs, cheese, and olive oil; mix well. Set aside. Halve plum tomatoes lengthwise. Scoop out insides leaving 1/4- to 1/2-inch shell. Sprinkle inside of each tomato half with pepper. Brush with some of the mayonnaise. Mound bacon mixture in tomatoes; transfer to baking pan.
Roast tomatoes, uncovered, 10 to 12 minutes or until tomatoes start to wilt. Serve with cherry tomatoes. Makes 2 servings.