Easy and Soul-Satisfying Mexican Ground Beef Casserole

Ingredients

• 2 tablespoons olive oil
• 1 medium onion chopped
• 2 garlic clove minced
• 1 pound lean ground beef
• 1 bell pepper medium, chopped
• 1/2 jalapeno sliced
• 1 teaspoon ground cumin
• 1 teaspoon chili powder
• 1 teaspoon dried oregano
• 1/4 teaspoon cayenne pepper optional
• 14 ounces diced tomatoes
• 2 tablespoons tomato paste
• 4 cups cauliflower florets
• 1/3 cup mayonnaise homemade or Paleo friendly store-bought
• 1 tablespoon nutritional yeast
• 1 scallion sliced, optional
• salt
• black pepper