In a large pot like this, heat olive oil over medium-high heat. Once oil is shimmery and hot, add ground beef. Season with 1 chili seasoning packet and cook, breaking apart with a spoon as beef cooks. Once beef is cooked through, drain excess fat and return pot to heat.
Add beer to deglaze pot, then add all remaining ingredients. Stir to combine, then lower heat to a simmer for about 45 minutes to 1 hour or until onions are tender. Stir chili occasionally as it simmers and add salt and pepper to taste.
Depending on your game day setup, you can leave the chili on the stovetop on low heat to keep it warm, or you can transfer it to a slow cooker to take it outside. You can even do the simmering in the slow cooker or do everything in an Instant Pot using the sauté function for cooking the beef.
If desired, serve chili with sour cream, green onions, corn chips, and cheddar cheese.
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