One pot beans, sausage, and greens

Name: One pot beans, sausage, and greens
Cuisine: American
Ingredients: 1 tbs olive oil, 12 ounces Italian sausage, 1 medium yellow onion chopped, 3 garlic cloves minced, 1 large bunch collard greens stemmed and chopped, 2 cans pinto beans rinsed and drained, 1/2 cup chicken broth or water, salt, black pepper