Combine all dressing ingredients in the blender and blend for 5-10 seconds on high. Pour into an airtight container like a mason jar.
Cut romaine wedges in half then rinse well. I assumed people (aka me) wouldn’t eat the bottom, so you can see I didn’t cut that off. However, if you are serving to other people you may want to cut the bottom stem off, just make sure you leave enough so that it stays together. I wouldn’t take off more than 1/8 of an inch.
Spoon (aka pour) ranch dressing over the top of the romaine hearts.
Top with one whole chopped tomato and 1 piece of chopped bacon.