Easy Vegetarian White Bean Casserole (Print version)

A cozy vegetarian white bean casserole with tender cannellini beans, vegetables, tomato-herb sauce, and crisp parmesan breadcrumbs.

# Ingredients:

For the bean filling

01 - 2 tablespoons olive oil, plus more for the dish
02 - 1 medium yellow onion, diced
03 - 1 medium carrot, diced
04 - 1 celery stalk, diced
05 - 8 oz (225 g) cremini mushrooms, sliced
06 - 4 garlic cloves, minced
07 - 2 tablespoons tomato paste
08 - 1 teaspoon dried thyme
09 - 1/2 teaspoon dried rosemary, crushed
10 - 1 teaspoon kosher salt, plus more to taste
11 - 1/2 teaspoon black pepper
12 - 1 can (14.5 oz or 411 g) diced tomatoes, with juices
13 - 1/2 cup (120 ml) vegetable broth
14 - 3 cans (15 oz each or 425 g each) cannellini beans, drained and rinsed
15 - 3 packed cups (90 g) chopped kale or baby spinach
16 - 1 tablespoon lemon juice

For the topping

17 - 3/4 cup (45 g) panko breadcrumbs
18 - 1/2 cup (45 g) grated parmesan cheese
19 - 2 tablespoons chopped fresh parsley
20 - 1 tablespoon olive oil

# Instructions:

01 - Preheat the oven to 400°F. Lightly oil a 9x13-inch baking dish or deep 3-quart casserole dish.
02 - Heat 2 tablespoons olive oil in a large skillet over medium heat. Add onion, carrot, celery, and mushrooms. Cook for 8-10 minutes, stirring often, until the mushrooms release moisture and begin to brown.
03 - Stir in garlic, tomato paste, thyme, rosemary, salt, and pepper. Cook for 1 minute, stirring constantly, until fragrant and slightly darker.
04 - Add diced tomatoes, vegetable broth, and cannellini beans. Simmer uncovered for 6-8 minutes, until the sauce thickens slightly but still looks moist.
05 - Stir in kale or spinach and cook for 2-3 minutes, until wilted. Add lemon juice, then taste and adjust salt if needed.
06 - Transfer the bean mixture to the prepared baking dish. Mix panko, parmesan, parsley, and 1 tablespoon olive oil in a small bowl, then sprinkle evenly over the beans.
07 - Bake for 18-22 minutes, until the edges are bubbling and the topping is golden. Let rest for 10 minutes before serving.

# Good to know:

01 - Use canned beans for the fastest version.
02 - Resting the casserole helps the sauce thicken before serving.
03 - Add a squeeze of lemon at the table for a brighter finish.