Step 1: Gather all ingredients. Drain and chop artichoke hearts, dice tomato, chop onion, and crush garlic.
Step 2: In a mixing bowl, combine artichokes, tomato, cheese, onion, garlic, and mayonnaise. Mix until well combined.
Step 3: Preheat oven to 400°F (200°C). Slice baguette and arrange on a baking sheet.
Step 4: Toast baguette slices in the oven for 5-7 minutes until golden brown and crispy.
Step 5: Spoon artichoke mixture onto toasted baguette slices. Serve immediately.