Beans on Toast with Crisp Bacon and Eggs

INGREDIENTS

• Extra-virgin olive oil
• 3 slices thick-cut bacon, cut in 1 1/2-inch pieces
• 4 garlic cloves, peeled and smashed into large pieces
• 8 fresh sage leaves, coarsely chopped
• 4 slices rustic bread
• 2 1/2 cups cooked beans, plus 1/2 cup cooking liquid
• Pinch of red-pepper flakes, plus more if desired
• 4 large eggs