Smoky Vegan Stuffed Mushrooms

Ingredients (for 4 servings)

• 1 cup — fennel bulb
• 0.75 cup — thickly sliced red onion
• 0.5 whole — a 15-oz. can no-salt-added cannellini beans
• 2 tbsp — dates
• 2 tbsp — lemon juice
• 1 tsp — cumin
• 0.5 tsp — smoked paprika
• 0.5 tsp — coriander
• 0 — Sea salt
• 0 — black pepper
• 8 whole — to ten 2½-inch-diameter fresh baby portobello or cremini mushrooms