It's dinner time!

Ingredients

• 1 pound firm tofu
• ¼ cup olive oil
• ½ teaspoon ground cumin
• ½ teaspoon chili powder
• ½ teaspoon dried oregano
• 2 cloves garlic, minced
• ¼ cup white wine vinegar
• ¼ cup dry white wine
• 10 slices whole wheat bread
• ¼ cup mayonnaise
• 5 Roma tomatoes, sliced
• 1 cup arugula
• 1 red onion, thinly sliced
• salt and ground black pepper to taste