How to Make It
Heat 1 tablespoon oil in a Dutch oven over medium-high. Add onion and garlic to pan; cook 2 minutes, stirring occasionally. Add mushrooms to pan; cook 5 to 6 minutes or until browned, stirring occasionally. Add tomatoes, stock, salt, and beans to pan, and bring to a boil. Cook 5 minutes or until mixture thickens and about half of the liquid has evaporated, stirring occasionally. Add spinach; cook 2 minutes or until wilted, stirring occasionally. Remove from heat; cover and keep warm.
Heat remaining 1 teaspoon oil in a large nonstick skillet over medium-high. Gently break eggs into pan; cook 3 minutes or until whites are set and yolks are still runny. Divide bean mixture among 4 shallow bowls. Top each serving with 1 egg; drizzle with vinegar, and sprinkle with pepper.