Ground Beef Tacos

Bahan-bahan (4 porsi)

• 1 large white or yellow onion (¼-inch diced (about 1 ½ cups))
• 3 tablespoons extra-virgin olive oil
• 4 cloves garlic (minced (about 4 teaspoons))
• 1 tablespoon chili powder
• 1 teaspoon ground cumin
• 1 teaspoon smoked paprika
• ½ teaspoon dried oregano
• ⅛ teaspoon cayenne pepper (optional; add more if you like a lot of spice)
• 2 tablespoons tomato paste
• 1 teaspoon kosher salt
• ½ teaspoon ground black pepper
• 1 pound lean ground beef
• 1 large beefsteak or similar tomato (finely chopped (about 1 cup))
• ¼ cup water
• Hard or soft taco shells (warmed)
• Shredded cheese
• Avocado or guacamole
• Plain greek yogurt or sour cream
• Shredded lettuce
• Diced tomatoes or salsa