Prepare herb spread by combining mayo, garlic, basil, and dill. Cover and refrigerate. Meanwhile, place strips of bacon on a cookie sheet lined with foil. Place in cold oven. Turn oven to 400 degrees and set the timer for 17 minutes. When timer goes off, remove cookie sheets from the oven and transfer bacon to a paper towel lined plate (allow grease on foil to cool completely, then just ball up and throw out for easy clean up). Double toast waffles. Prepare sandwiches by spreading 2 tablespoons of herb spread on each waffle. Top with bacon slices, tomato slices, and lettuce leaves. Top with another waffle. Serve immediately.