Combine 3 tablespoons flour, thyme, and paprika in a large ziplock bag. Sprinkle chicken with 1/4 teaspoon salt. Add chicken to bag, seal and turn to coat.
Heat a large nonstick skillet over medium-high heat. Add oil to pan and swirl to coat. Add chicken to pan and cook four minutes or until browned. Turn chicken and cook another two minutes. Remove chicken from pan, chicken will not be cooked through.
Add onion and mushrooms to pan and cook five minutes or until mushrooms are browned. Stirring occasionally.
Stir in remaining 1 1/2 teaspoons of flour, 1/4 teaspoon salt, beer, chicken broth, Worcestershire sauce and pepper. Bring to a boil and cook two minutes.
Return chicken to pan. Reduce heat and cook covered for 15 minutes or until chicken is done.