Breakfast ingredients in a lettuce cup for lunch. Egg, bacon, crunch — it's a low carb crossover that works at any time of day.
Preheat a nonstick skillet over medium heat. Cook bacon slices for 5-7 minutes, flipping as needed, until crisp and golden. Drain on paper towels.
While bacon cooks, bring a small saucepan of water to a boil over medium-high heat. Gently lower the eggs in and boil for 7 minutes for a slightly jammy center, or 9 minutes for firmer yolks.
Remove eggs from boiling water and cool immediately under cold running water. Peel and slice each egg into halves.
Lay out the romaine lettuce leaves on a serving plate. Pat them dry with paper towels so they remain crisp.
Assemble each cup: spread a thin layer of mayonnaise on the lettuce, add a few slices of cooked bacon, top with egg halves, and finish with halved cherry tomatoes. Sprinkle with salt and black pepper just before serving.