A classic flavor pairing: lentils and greens together with spicy sausage meat make for a hearty stew.
Heat 1 tablespoon oil in a large pot over medium-high. Add sausage, carrots, onion, and garlic. Season with salt and pepper. Cook, stirring occasionally and breaking up sausage into bite-size pieces, until meat is no longer pink, about 5 minutes. Stir in tomato paste; cook, stirring, 1 minute. Add broth, 3 cups water, and lentils. Bring to a boil. Cover, reduce heat to low, and simmer until lentils are tender, about 30 minutes.
Meanwhile, toss escarole with lemon juice and remaining 1 tablespoon oil in a large bowl. Season with salt and pepper. Top stew with escarole salad, drizzle with more oil, and serve.