Tuna-Artichoke Salad

1 (6 ounce) jar artichoke hearts

drained and chopped

¼ cup chopped fresh dill

1 tablespoon olive oil

1 tablespoon lemon juice

2 cloves garlic

minced

½ teaspoon ground black pepper

1 cup chopped fresh spinach

1 (5 ounce) can tuna

drained

1 red bell pepper

chopped