He smiled agreeably to himself as he thought of those biscuits, each cut open and sopped in bacon grease, and each enclosing a generous slice of fried bacon. (I have biscuits, bacon

grease and bacon as nouns is this right and are there more in this sentence?

I've underlined the nouns in your sentence.

He smiled agreeably to himself as he thought of those biscuits, each cut open and sopped in bacon grease, and each enclosing a generous slice of fried bacon.

The first "bacon" is an adjective describing "grease.

Yes, you have correctly identified "biscuits," "bacon grease," and "bacon" as nouns in this sentence. Additionally, there are a few more nouns that can be identified:

1. "himself" - a reflexive pronoun used as the object of the preposition "to"
2. "thought" - a noun used as the subject of the verb "smiled" (gerund)
3. "slice" - a noun used as the direct object of the verb "enclosing"
4. "fried bacon" - a noun phrase functioning as the object of the preposition "of"

To identify nouns in a sentence, you can look for words that represent people, animals, places, things, or ideas. In this sentence, the nouns are the key elements that describe the biscuits and the bacon.