1. Preheat oven to 375 degrees. Place bacon on a rimmed baking sheet; cook until golden and crisp, about 15 minutes, rotating sheet halfway through. Drain on paper towels.

2. Meanwhile, in a large shallow dish, whisk together eggs, cream, and chives; season with salt and pepper. Lay bread in a single layer in egg mixture and soak 3 minutes on each side. In a large skillet, melt butter over medium. When butter sizzles, add bread and cook until golden and crisp around edges, about 3 minutes per side, flipping once.

3. To serve, layer lettuce, tomato, and bacon on each slice French toast and sprinkle with chives.