Spinach Crostini

Ingredients

• 1 (10-ounce) package frozen chopped spinach, thawed and drained
• 2 plum tomatoes, diced
• 1 small onion, diced
• 1 garlic clove, minced
• 1/2 cup crumbled feta cheese
• 1/4 cup mayonnaise
• 1/4 cup sour cream
• 1/4 teaspoon pepper
• 1 (16-ounce) French bread loaf, cut into 1/2-inch slices