Step 1: Prepare the Burger Mixture

Start by taking the 1-1/2 pounds of ground beef and placing it into a large mixing bowl. Add the 4 ounces of mild green chilies, which provide a subtle heat and moisture to keep the burgers juicy. These chilies are key because they prevent the patties from drying out during cooking, as emphasized in the recipe video.

Next, incorporate 1 tablespoon of taco seasoning. This blend typically includes chili powder, cumin, oregano, garlic powder, onion powder, and paprika for that classic Tex Mex profile. If making your own, mix equal parts chili powder and cumin with smaller amounts of the others to match the store-bought version shown. Sprinkle in salt to taste, as ground beef benefits greatly from seasoning to enhance its natural flavors.

Use clean hands to gently mix everything together until well combined. Avoid overworking the meat, which can make the burgers tough. The mixture should look uniform with visible bits of chilies distributed evenly throughout, setting the stage for flavorful bites in every patty.

Step 2: Form the Patties

Divide the seasoned beef mixture into four equal portions for substantial, thick burgers. Each portion will yield a nice-sized patty that shrinks during cooking, so starting larger ensures perfect final dimensions.

Roll each portion lightly into a ball in your hands without compacting too firmly. Then, gently flatten into patties about three-quarters of an inch thick. This thickness allows for even cooking while retaining juiciness inside.

Press two fingers into the center of each patty to create a small indentation. This crucial step prevents the burgers from puffing up unevenly in the middle during cooking, ensuring the edges and center cook at the same rate for consistent doneness.

Step 3: Preheat the Cooking Surface

Place a cast iron skillet or grill pan over medium to medium-high heat. Allow it to preheat for about five minutes. Proper preheating is essential because cast iron retains heat exceptionally well, creating a gorgeous sear and crust on the burgers without drying them out.

Ensure the skillet is well-seasoned to prevent sticking. If grilling outdoors, prepare your barbecue to the same temperature range. The heat level mimics a summer cookout vibe, perfect for entertaining as described in the video.

Test readiness by flicking a drop of water onto the surface; it should sizzle and evaporate quickly. This confirms the skillet can deliver that restaurant-quality char right from the start.

Step 4: Cook the Burgers

Reduce the heat slightly to medium-medium high once preheated. Place the patties in the skillet without overcrowding, giving each space to sear properly.

Cook for four to four and a half minutes per side for fully cooked yet juicy results. Flip only once using a spatula to preserve the crust. Listen for the sizzle, which indicates perfect browning.

Watch for shrinkage, a natural occurrence as the burgers release moisture and fat. The final patties will be smaller, which is why larger starting sizes work best. They should reach an internal temperature of 160 degrees Fahrenheit for safety.

Step 5: Add Cheese and Prepare Toppings

During the last minute of cooking, top each burger with a slice of cheddar or pepper jack cheese. For even melting, tent loosely with foil or transfer to foil off-heat.

While burgers rest, slice the two tomatoes into thick rounds for sturdy layers. Halve the avocado, remove the pit, and slice thinly; it adds creaminess without mayo. Thinly slice a quarter red onion for sharp contrast, chop fresh cilantro if using, and cut the lime into wedges.

Season toppings thoughtfully: salt the tomatoes lightly if desired, but the burgers carry most salt. Avocado loves salt and citrus, so prepare to season it just before assembly.

Step 6: Toast the Buns and Assemble

Split the four burger buns and lightly toast them on the skillet or grill for extra texture. This step absorbs juices and prevents sogginess.

Build on the bottom bun: start with cheese-topped patty, then one to one and a half tomato slices for freshness. Layer thin red onion slices sparingly, as a little provides punch. Add avocado slices next for slipperiness and richness.

Finish with cilantro if desired, a squeeze of lime over everything for brightness, and top bun. Press gently to meld flavors. The assembly mimics a fresh salad atop juicy meat, as highlighted in the video.

Step 7: Serve and Enjoy

Transfer assembled burgers to a platter. Encourage guests to customize, as toppings can shift. Squeeze extra lime over the top just before biting to unify flavors.

Slice in half to reveal the juicy cross-section with visible chili flecks. Serve immediately for peak texture and heat. These burgers shine at barbecues or weeknight dinners.

Pair with simple sides to keep focus on the star. Leftovers reheat well in a skillet to revive crispness.