Taco Pizza (Vegan & Super Easy) - Vegan Heaven

Ingredients

• 1 cup walnuts
• 1 cup brown lentils
• 1 tablespoon olive oil
• 1/2 onion
• 1 tablespoon tomato paste
• 1/2 cup diced tomatoes
• 1 teaspoon cumin
• 1 teaspoon paprika powder
• 2 teaspoons oregano
• salt, to taste
• black pepper, to taste
• 1 pre-made pizza dough
• 1 cup vegan sour cream
• 1 avocado, cut into pieces
• 2 tomatoes, cut into pieces
• 2 cups lettuce, cut into stripes
• 1/2 cup kidney beans
• 1/2 cup corn
• 1/2 cup vegan cheese
• red pepper flakes (optional)